A word for “seventh” in notes on Elvish numbers from the late 1960s (VT42/25), an adjectival form of otso “seven”.
Conceptual Development: The Early Qenya Grammar (EQG) of the 1920s had ᴱQ. otya “seventh” also based on ᴱQ. otso “seven” (PE14/51, 82).
otsëa ordinal "seventh" (VT42:25). See otso.