I am looking for names for girls and boys to get nature nicknames out of full names such as…
[name_f]Katherine[/name_f] nn [name_u]Wren[/name_u]
[name_f]Harriet[/name_f] nn Hare
[name_u]Barrett[/name_u] nn [name_m]Bear[/name_m]
[name_u]Lincoln[/name_u] nn [name_u]Lynx[/name_u]
Thank you in advance, berries!
Catalina/Katrina “Cat”
Beatrice/Beatrix/Bernice/Bina “Bee”
[name_f]Doveva[/name_f] “Dove”
[name_u]June[/name_u] “Juniper”
[name_f]Wilhelmina[/name_f] “Willow”
[name_f]Olivia[/name_f] “Olive”
[name_f]Margaret[/name_f] “Pearl”
[name_u]Ariel[/name_u] “Air”
[name_u]Florence[/name_u] “Wren” “Flora” “Fern”
Berenice/Bernice/Beryl “Berry” “Birdie”
[name_u]Hollis[/name_u] “Holly”
[name_m]Solomon[/name_m] “Sol” “Sunny”
[name_m]Sebastian[/name_m] “Sunny”
[name_u]Benjamin[/name_u] “Bee”
Harris/Harrison “Hare”
[name_m]Lemuel[/name_m] “Lemmon”
[name_m]Iverson[/name_m] “Ivy”
[name_m]Augustus[/name_m] “August”
Tobias/Tobin “Bee”
Christopher/Corbin “Cricket”
Ferris/Felix “Fox”
[name_f]Lauren[/name_f] is also a [name_u]Wren[/name_u] 
Masculine
Arthur → Bear
Beckett → Bee, Beck (“stream”)
Ronan → (Little) Seal
Juneau → June, Junie
Rainier → Rainy
Feminine
Beatrix / Beatrice → Bee
Viola / Violetta → Violet
Lilja → Lily
Lila → Lilac
Lydia → Lily
Apolline → Apple
Juneau → June, Junie
Summer → Sunny
Philippa → Pony
[name_u]Ashley[/name_u] nn [name_u]Ash[/name_u]
[name_f]Coraline[/name_f] nn [name_f]Coral[/name_f]
[name_f]Doveva[/name_f] nn [name_u]Dove[/name_u]
[name_u]Florence[/name_u] nn [name_f]Flora[/name_f]
[name_f]Holiday[/name_f] nn [name_u]Holly[/name_u]
[name_f]Sunniva[/name_f] nn [name_u]Sunny[/name_u]
[name_u]Brooklyn[/name_u] nn [name_u]Brooke[/name_u]
Oliver/Olivia nn [name_f]Olive[/name_f]
[name_u]Clifford[/name_u] nn [name_m]Cliff[/name_m]
[name_m]Wolfgang[/name_m] nn [name_m]Wolfe[/name_m]
[name_m]Leonard[/name_m] nn [name_u]Leo[/name_u]
[name_u]Baylee[/name_u] nn [name_u]Bay[/name_u]
any ren sound ending name (Cameron, [name_u]Darren[/name_u], [name_f]Karen[/name_f], [name_u]Seren[/name_u], [name_m]Kieren[/name_m] etc.) nn [name_u]Wren[/name_u]
Back a couple years ago I made a topic specifically interested in animal nicknames. Here are some of my favourites
[name_f]Ottilie[/name_f] | [name_f]Ottilia[/name_f] | [name_f]Ottavia[/name_f] | [name_m]Ottavio[/name_m] nn [name_f]Otter[/name_f]
[name_m]Lorenzo[/name_m] | [name_f]Serenity[/name_f] | [name_f]Adrienne[/name_f] | [name_m]Florentin[/name_m] | [name_f]Kerensa[/name_f] nn [name_u]Wren[/name_u]
[name_u]Rory[/name_u] | [name_u]Leo[/name_u] | Leonty nn [name_m]Lion[/name_m]
[name_m]Alfonso[/name_m] | [name_f]Fauna[/name_f] | [name_f]Faunia[/name_f] nn [name_f]Fawn[/name_f]
[name_f]Bernadette[/name_f] | [name_f]Bernadine[/name_f] | [name_f]Bridget[/name_f] nn [name_f]Birdie[/name_f]
[name_m]Bernard[/name_m] | [name_f]Beryl[/name_f] | [name_m]Huckleberry[/name_m] nn [name_m]Bear[/name_m]
[name_f]Ravenna[/name_f] nn [name_u]Raven[/name_u]
[name_f]Katherine[/name_f] nn [name_u]Kit[/name_u]
[name_f]Penelope[/name_f] nn [name_f]Poppy[/name_f]
[name_f]Valerie[/name_f] nn [name_f]Valley[/name_f]
[name_u]December[/name_u] or [name_u]November[/name_u] nn [name_u]Ember[/name_u]
[name_f]Holiday[/name_f] nn [name_u]Holly[/name_u]
[name_f]Olivia[/name_f] nn [name_f]Ivy[/name_f]
[name_m]Christopher[/name_m] nn [name_u]Kit[/name_u]
[name_u]Lawrence[/name_u] nn [name_u]Wren[/name_u]
Firnin “Fern”
Wolfram/Wolfsbane/Wolfgang “Wolf”
Katherine/Christopher/Atticus “Kit” (kit is a baby fox)
[name_f]Sunniva[/name_f] “Sunny”
[name_f]Opaline[/name_f] “Opal”
[name_f]Gwendolyn[/name_f] “Windy”
[name_u]Holland[/name_u] “Holly”
Ivana/Ivanka “Ivy”
[name_f]Sonata[/name_f] [name_u]Sparrow[/name_u] “Snow”
[name_u]Skyler[/name_u] “Sky”
Skander/Iskander/Sikander “Sky”
Rosario/Rosalie “Rose”
[name_f]Laura[/name_f] “Laurel”
Swanhild(e) “Swan”
[name_u]Riviera[/name_u] “River”
Rylan(d)/Ryker/Ryder “Rye”
Islanzadi “Isle/Isla”
[name_m]Aquilla[/name_m] “Quill”
Quillon/Quillan/Quillen/Quinlan/Quinlin “Quill”
Reyna/Raina/Rayna/Reina/Rainier “Rain”
[name_f]Katherine[/name_f] “Kitty”
[name_f]Catherine[/name_f] “Cat”
[name_f]Coralie[/name_f] “Coral”
[name_m]Leonardo[/name_m] “Leo”
[name_m]Newton[/name_m] “Newt”
[name_m]Ollivander[/name_m] “Olive”
Idk if these work for you; they’re based on meaning:
[name_m]Altair[/name_m] “Falcon”
[name_m]Fennec[/name_m] “Fox”
Theodore/Teddy “Bear”
Zephyr/Auster “Windy”
Sylvan/Sylvia “Forest” or “Silver”
Aurelia/Aurelius “Gold/Goldie”
[name_f]Kailani[/name_f] “Sea” or “Sky”
[name_u]Sora[/name_u] “Sky”
[name_f]Soraya[/name_f] “Jewel”
[name_f]Morena[/name_f] “Harvest”
[name_u]Demeter[/name_u] “Harvest”
[name_m]Avon[/name_m] “River”
Amo/Amou/Adler/Aleron/Aquilla/Orel/Oriel/Talako “Eagle”
Azur/Azura/Azula “Blue”
[name_m]Beowulf[/name_m] “Bear”
[name_f]Luna[/name_f] “Moon”
[name_m]Loch[/name_m] “Lake”
[name_m]Lachlan[/name_m] “Fjord”
[name_m]Oren[/name_m] “Laurel” or “Pine”
Thor/Zeus/Raiden/Jupiter “Thunder”
If the reverse works, I have [name_u]Juniper[/name_u] “June”
[name_m]Theodore[/name_m] nn [name_m]Todd[/name_m]
[name_u]Tegan[/name_u] nn Teak
Avalon “Valley”
Edit: Some more I’ve thought of:
Tardigrade “Bear”
Saphira or Sapphira “Sapphire”
Esmeralda “Emerald”
Odette “Swan”
Aurora “Dawn”
Kai “Sea” or “Ocean”
Oisin “Ocean” or “Deer”
Lunaria “Luna” - although Lunaria itself is a flower
Lillian “Lily”
Lillibet “Lily”
For the reverse:
Amethyst “Amy”
Clarifications:
Beowulf means bear but you could also do “Bee” or “Wolf” since Beowulf means the bee’s wolf and since the predator/wolf of the bees is supposed to be a bear, it means “bear”
To clarify Sylvan and Silvia, they mean forest but they look and sound similar to “silver”. Similarly, Oisin means “little deer” but is pronounced like Ocean
[name_f]Raina[/name_f] ‘Rain’
[name_f]Fernanda[/name_f] / [name_m]Fernando[/name_m] ‘Fern’
[name_f]Olivia[/name_f] / [name_f]Olivette[/name_f] / [name_f]Olivetta[/name_f] / [name_m]Olivian[/name_m] / [name_u]Oliver[/name_u] ‘Olive’
[name_f]Ambrosia[/name_f] / [name_m]Ambrose[/name_m] / [name_m]Ambrosius[/name_m] / [name_m]Ambrosio[/name_m] ‘Rose’
[name_u]September[/name_u] ‘Ember’
[name_u]Skyler[/name_u] / [name_u]Skylar[/name_u] ‘Sky’
[name_f]Ivanna[/name_f] ‘Ivy’
[name_f]Coraline[/name_f] ‘Coral’
[name_m]Aquilo[/name_m] / [name_u]Aquila[/name_u] / [name_m]Aquilino[/name_m] / [name_m]Aquilino[/name_m] ‘Quill’
[name_u]Lionel[/name_u] ‘Lion’
[name_f]Galilea[/name_f] / [name_m]Galileo[/name_m] ‘Lily, Gale’
[name_f]Roxanne[/name_f] / [name_f]Roxana[/name_f] ‘Rock’
[name_u]James[/name_u] / [name_u]Jamie[/name_u] / [name_m]Jacob[/name_m] / [name_m]Javier[/name_m] ‘Jay’
[name_f]Astara[/name_f] / [name_f]Ostara[/name_f] / Staraya ‘Star, Staring’
[name_f]Solana[/name_f] / [name_u]Solaris[/name_u] ‘Sol’
Windel / [name_m]Wyndham[/name_m] ‘Wind, Windy’
[name_f]Lorelai[/name_f] ‘Laurel’
[name_u]Ryan[/name_u] / [name_m]Ryland[/name_m] ‘Rye’
[name_m]Raymond[/name_m] / [name_f]Raysel[/name_f] / [name_f]Raina[/name_f] / [name_f]Sereia[/name_f] ‘Ray’
[name_m]Barnaby[/name_m] / [name_m]Barnabas[/name_m] ‘Barn’
[name_u]Haley[/name_u] ‘Hale’
[name_u]Hayden[/name_u] ‘Hay’
[name_f]Valletta[/name_f] / [name_f]Valerie[/name_f] / [name_f]Valeria[/name_f] / [name_m]Valerius[/name_m] / [name_m]Valerio[/name_m] / [name_m]Valerian[/name_m] ‘Valley’
[name_f]Celia[/name_f] / [name_m]Celio[/name_m] ‘Seal’
[name_f]Elka[/name_f] ‘Elk, Selkie’
[name_f]Cornelia[/name_f] / [name_m]Cornelius[/name_m] ‘Corn’
[name_f]Bayla[/name_f] ‘Bay’
[name_m]Harold[/name_m] ‘Hare’
[name_f]Rowena[/name_f] ‘Rowan’
[name_f]Angeline[/name_f] ‘Tangerine’
[name_u]Cory[/name_u] ‘Coriander’
[name_m]Robinson[/name_m] ‘Robin’
[name_m]Wil[/name_m]- names nn [name_u]Willow[/name_u]
[name_f]Rose[/name_f] names
[name_f]Lily[/name_f] names
[name_u]Ash[/name_u] names
[name_u]Finn[/name_u] names
[name_f]Julia[/name_f] names nn ‘Jules’ (jewels)
[name_m]Thomas[/name_m] nn [name_m]Todd[/name_m]
[name_m]Beowulf[/name_m] nn [name_u]Wolf[/name_u]