Quenya 

otso

cardinal. seven

The usual Quenya word for “seven” was otso dating all the way back to the Qenya Lexicon of the 1910s (PE17/96; VT47/42; VT48/6; Ety/OT; PE14/49, 82; QL/71), though it had occasional variants like otos (PE17/95) or {oxo >>} osko (VT47/42). Its root form was √OTOS or √OTOK, the latter producing S. odog “seven”.

Quenya [PE17/095; PE17/096; SA/sîr; VT47/42; VT48/06] Group: Eldamo. Published by

otso

cardinal. seven

otso cardinal "seven" (SA:sîr, OT/OTOS/OTOK, VT48:6); otsëa ordinal "seventh" (VT42:25)

osco

cardinal. seven

otos

cardinal. seven