English

enneadeca-

From ennea- + deca-.

A compound of ennea- + deca-

Proto-Indo-European *h₁néwn̥ ‘nine’

Proto-Hellenic *ennéwə ‘nine’

Ancient Greek ἐννέα ‘nine’

Proto-Indo-European *déḱm̥ ‘ten’

Proto-Hellenic *dékə ‘ten’

Ancient Greek δέκα ‘ten’

Ancient Greek δεκάς ‘a group of ten, decade’

Late Latin decas ‘(set of) ten’

English deca-

Today it means

prefix nineteen

Language periods are conventional ranges, not dates for this word.

Etymograph / enneadeca-