1560s, from Middle French heptagon, from Greek heptagonon, from hepta "seven" (see septi-) + gōnia "angle, corner" (from PIE root *genu- (1) "knee; angle"). Related: Heptagonal.
hepcat
Hephaestus
Hephzibah
Hepplewhite
hepta-
heptagon
heptane
heptarchy
her
Hera
Heracles
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