hepta-

prefix

combining form meaning "seven"
combining form meaning "containing seven atoms, groups, or equivalents"

Wiktionary

Pronunciation: /ˈhɛptə-/ / /hɛpˈtæ-/

prefix

Etymology: PIE word *septḿ̥ Etymology tree Proto-Afroasiatic *sṗɣ? Proto-Semitic *šabʕ-bor.? Proto-Indo-European *septḿ̥ Proto-Hellenic *heptə́ Ancient Greek ἑπτᾰ́ (heptắ)bor. English hepta- From Ancient Greek ἑπτά (heptá, “seven”).

Seven.