Etymograph

English

heptaoxide

From hepta- + oxide.

A compound of hepta- + oxide

Proto-Indo-European *septḿ̥ ‘seven’

Proto-Hellenic *heptə́ ‘seven’

Ancient Greek ἑπτά ‘seven’

English hepta-

Proto-Indo-European *h₂eḱ- ‘sharp’

French oxyde

English oxide

Today it means

noun —

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

Etymograph / heptaoxide