Thanks for suggestions- starting new post for new thoughts
Boy howdy. You got some rules, name sister! I’m not going to say I’m going to hit everyone! I get the not ending in certain letters.
[name_m]Dashiell[/name_m]- There is not a meaning known, it’s from a french surname. (nn [name_u]Dash[/name_u] is a plus in my eyes)
[name_m]Julius[/name_m]- to fit your nn criteria.
[name_m]Mattias[/name_m]- A variation of [name_m]Matthew[/name_m] (travel fairly well I believe)
[name_m]Graham[/name_m]- Scottish in origin means gravelly homestead. A warm name to me.
[name_m]Abram[/name_m]- father of multitudes I believe the name is -nn [name_m]Bram[/name_m] is cool.
[name_m]Cormac[/name_m]- irish, charioteer is the meaning.
I hope this fits all of your criteria, but you look hard enough. You’ll find the perfect names out there.
[name_m]Dashiell[/name_m] and [name_f]Guinevere[/name_f] is a smart match to me. 
Wow, what at list of requirements! Saying that mine would probably look the same if I wrote it out :). I don’t quite understand some of them like [name_u]Jules[/name_u] but not [name_u]Francis[/name_u] but I think if I stick to longer masculine names that have a classy/classic feel and meet your start and end requirements I should be ok. Can I ask why the list of starting letters is so small?
The first name that popped into my head when reading was [name_m]Nathaniel[/name_m]/[name_m]Nathanael[/name_m], it works with your DH’s love of [name_m]Nathan[/name_m] and fits all your other requirements. It is Hebrew meaning ‘gift of God’.
[name_m]Nathaniel[/name_m] [name_u]Everett[/name_u] Viking
Others that could work for you:
[name_m]Daniel[/name_m]/Deniel [name_u]Everett[/name_u] Viking – Hebrew “God is my [name_m]Judge[/name_m]”
Henricus [name_u]Everett[/name_u] Viking – Germanic/Dutch form of [name_m]Henry[/name_m] meaning “home/power ruler”
[name_m]Immanuel[/name_m] [name_u]Everett[/name_u] Viking – A form of [name_m]Emmanuel[/name_m] meaning “God with us”
[name_m]Lemuel[/name_m] [name_u]Everett[/name_u] Viking – Hebrew “Belonging to God”
[name_m]Llewellyn[/name_m] [name_u]Everett[/name_u] Viking – Welsh “leader”. Perhaps not masculine enough
[name_m]Lysandros[/name_m] [name_u]Everett[/name_u] Viking – Ancient Greek form of Lysandra meaning “a release and man”. A variation of a name you like may be enough to break the association with it.
[name_m]Nicholas[/name_m]/[name_m]Nikolas[/name_m] [name_u]Everett[/name_u] Viking – English/[name_m]French[/name_m] from the Greek “[name_m]Victor[/name_m] of the People”. Out of the running if you have [name_m]Dominic[/name_m]
[name_m]Zacchaeus[/name_m] [name_u]Everett[/name_u] Viking - Greek form of Zaccai meaning “pure”
A few that match all but the [name_f]Jane[/name_f] [name_u]Austen[/name_u] Suitor requirement, but you may judge differently:
[name_m]Habakkuk[/name_m] [name_u]Everett[/name_u] Viking– Hebrew meaning “embrace”
Hermanus [name_u]Everett[/name_u] Viking– Germanic/Dutch form or [name_m]Herman[/name_m] meaning “army man”
[name_m]Ishmael[/name_m] [name_u]Everett[/name_u] Viking – Hebrew “God will hear”
[name_m]Ibrahim[/name_m] [name_u]Everett[/name_u] Viking – Arabic form of [name_m]Abraham[/name_m] meaning “father of many” or “many, multitude”
[name_m]Zachery[/name_m] [name_u]Everett[/name_u] Viking – English form of [name_m]Zachariah[/name_m] meaning “Yahweh Remembers”
Not knowing how strict they are I’m going to suggest some others that almost fit your requirements:
[name_m]Ezekiel[/name_m] [name_u]Everett[/name_u] Viking
[name_u]Emerson[/name_u] [name_u]Everett[/name_u] Viking
[name_m]Cooper[/name_m] [name_u]Everett[/name_u] Viking
[name_m]Donovan[/name_m] [name_u]Everett[/name_u] Viking
[name_m]Damian[/name_m]/Damiaan/[name_m]Damion[/name_m]/[name_m]Damon[/name_m] [name_u]Everett[/name_u] Viking
[name_u]Darby[/name_u] [name_u]Everett[/name_u] Viking
[name_u]Darcy[/name_u] [name_u]Everett[/name_u] Viking
[name_m]Darius[/name_m] [name_u]Everett[/name_u] Viking
[name_m]Hamish[/name_m] [name_u]Everett[/name_u] Viking
[name_m]Hadrian[/name_m] [name_u]Everett[/name_u] Viking
[name_m]Harrison[/name_m] [name_u]Everett[/name_u] Viking
[name_m]Henderson[/name_m] [name_u]Everett[/name_u] Viking
[name_m]Hezekiah[/name_m] [name_u]Everett[/name_u] Viking
[name_u]Hudson[/name_u] [name_u]Everett[/name_u] Viking
[name_m]Lochlann[/name_m] [name_u]Everett[/name_u] Viking
Malachai [name_u]Everett[/name_u] Viking
Maxakai [name_u]Everett[/name_u] Viking
[name_m]Theodore[/name_m] [name_u]Everett[/name_u] Viking
[name_m]Zachariah[/name_m] [name_u]Everett[/name_u] Viking
[name_m]Zoltan[/name_m] [name_u]Everett[/name_u] Viking
I was sure I was going to be able to solve this puzzle for you but I don’t feel like I’ve found any that fully match what you are after. Obviously I don’t know the reason for all your requirements but have a go looking outside the box you’ve made, you never know you may fall head over heels for something unexpected. Also don’t forget you only need one perfect name :).Good luck.
I basically just looked at the signature of the last person who wrote a comment and they might have the perfect name in there.
[name_m]Jonathan[/name_m]
It’s biblical, easy to pronounce in both [name_u]America[/name_u] and Western Europe, it’s three syllables, has really cute nicknames. Seems just about right to me.
Thanks to all 3 of you <3
The reason behind all the requirements lol ~ well we have other littles and a few names we agree we like and we don’t want to repeat initials… Also our surname clashes with certain sounds and we don’t want the initial to be repetitive and there are some letters we just dislike for starting names, and other things like certain endings rhyme with other bands we have used… And so on hehe…
Of what you’ve suggested:
I like Julius & Abram but I don’t think my husband will go for the former and the latter I might ask him about again 
The difference between Jules and Francis… Both would be considered girls names where we live now but both are quite male in my head… Jules has more flash to it though imo
Let’s see…
Nathaniel has been on our list but I’m just not so into it, I don’t think i like the nn Nate and I think that’s the same reason Dominic wavers… Nikolas I’ve thought about Nico I like also Nicola but I don’t know if that’s used for boys much here… I like Zac names but know about 12… We talked about Lochlainn and I remember we did both like that…I like a lot of these but they either don’t fit us quite enough or we know a bunch…
Jonathan we can’t use because we know a few and lots of Johns including a young baby in the family :-/ and other reasons but it is a really nice name! Thanks! I know it’s a lot if specifics…