Not Theodore, Benedict or Alexander...

[zumm]

But something similar - i.e. a longer, more formal, name that can be shortened. Can you think of anything along these lines? Thank you!

Joseph?
William
Matthew
Dominic
Sebastian

Was also going to suggest Sebastian

Xander?

Xavier

Cassian

Florian

Sebastian

Stelios

Malachi

Many thanks, some good ideas!
But can't go with Xander,sadly (Alex is nephew).
Sebastian - look away now Sebastian lovers, but I always think of fat little oily boys (sebaceous?) and don't like Seb, tho Bas is quite good.
Cass, Flo, Joe - don't want a gender ambiguous nickname (although irony noted in my suggestion of Alexander = Alex).
Mal - french for bad.
Xavier works well as Xav.
Stelios is interesting.

Solomon? Sol or solly for short

Nicholas? Edwin, Edward?

Quentin = Quinn
Edward = Ted
Gabriel = Gabe

Barnaby
Lawrence
Nathaniel
Zachary
Christopher
Solomon
Tristan
Jonathan
Benjamin
Harrison
Frederick
Sylvester
Jeremiah
Maximilian

Thaddeus - Ted/Teddy
Josiah - Joss
Augustus - Gus

Some lovely names here, with thanks. Next question - can you think of any more 2 syllable names (Rubertbear has two e.g.s) - but that don't end in an 'es/as' sound or an 'er or ah' sound? Thanks!

Joseph, Nathan and Leon - I love all these!

For the longer name how about Dominic or Sebastian? Love these too!