bybliotheca
N F
library (either collection of books or the building| also person in charge)

bycus
boxwood.

byrrus
ADJ
red

byssinum
N
garment made of fine flax (byssus)

byssinus
ADJ
made of fine linen/flax| fine flaxen; [~ linum => fine linen/flaxen cloth]

byssum
N
kind of fine flax; linen made of it (L+S); cotton

byssus
N F
kind of fine flax; linen made of it (L+S); cotton

Byzantium
N
Byzantium (city on Bosphorus| later Constantinople| now Istanbul)

byzantius
bisantius.