This is for a story, but it’s such a specific request I figured I’d ask the site at large. I’d like a boy’s name with the nickname [name_u]Con[/name_u]/[name_u]Connie[/name_u]; I’ve thought of [name_f]Constance[/name_f] and [name_u]Conner[/name_u], but neither are quite doing it for me and I’d really like to see if there’s more options.
Please and thank you. 
[name_u]Connie[/name_u] is a girls name and [name_u]Con[/name_u] is con, like a con man
Nameberry’s super search has a feature where you can enter the first or last or containing letters.
entering the first letters as con the best i found are:
[name_m]Conal[/name_m]
[name_m]Conrad[/name_m]
[name_m]Conan[/name_m]
[name_u]Connery[/name_u]
[name_u]Connolly[/name_u]
[name_u]Constantine[/name_u]
[name_f]Consuela[/name_f]
[name_m]Conway[/name_m]
The first name that came to mind was [name_m]Conrad[/name_m].
[name_m]Conaire[/name_m]
[name_m]Conall[/name_m]
[name_m]Conan[/name_m]
[name_u]Concord[/name_u]
[name_m]Conlan[/name_m]
[name_u]Connelly[/name_u]
[name_u]Connery[/name_u]
[name_m]Connor[/name_m]
[name_m]Conrad[/name_m]
[name_m]Conroy[/name_m]
[name_m]Conway[/name_m]
[name_u]Corbin[/name_u]
[name_m]Conall[/name_m] is my favorite. [name_m]Conrad[/name_m] is handsome too. I love [name_u]Con[/name_u] but [name_u]Connie[/name_u] is all girl to me.
[name_m]Both[/name_m] would be used as nicknames; the femininity and negativity of the two nicknames are intentional.
I’ve stopped searching Nameberry after discovering how inaccurate their meanings are and getting some results that simply aren’t names.
So far I like
[name_m]Conrad[/name_m]
[name_m]Conroy[/name_m]
[name_m]Conway[/name_m]
[name_u]Connelly[/name_u]
[name_u]Connery[/name_u]
[name_m]Conan[/name_m]
I like [name_u]Constantine[/name_u] the most for [name_u]Con[/name_u]/[name_u]Connie[/name_u]. Hmmm, I’ll likely be repeating people, but here you go…
[name_m]How[/name_m] about:
Arconcio
[name_m]Connal[/name_m]
[name_m]Conan[/name_m]
Concetto
[name_u]Concord[/name_u]
Condel
Condon
Coni – Native American-Quechua for warm
Coniraya – same origin as Coni
Conleth
[name_m]Conley[/name_m]
[name_u]Connery[/name_u]
[name_m]Connor[/name_m]
[name_m]Conrad[/name_m]
[name_m]Conroy[/name_m]
Constancio
[name_m]Constant[/name_m]
[name_u]Constantine[/name_u]
[name_m]Constantinos[/name_m]
[name_f]Consuelo[/name_f]
[name_m]Conway[/name_m]
[name_u]Falcon[/name_u]
[name_m]Lincoln[/name_m]
Marconi
Onacona
My best friend liked the name [name_m]Connor[/name_m] when she was preggo, but always thought it sounded incomplete. Then she saw a documentary about a very inspirational little boy whose name was O’[name_m]Connor[/name_m] and feel in love. So her son is O’[name_m]Connor[/name_m] and we call him either OC or sometimes [name_u]Con[/name_u].