hypergiant

noun

Etymology: Etymology tree Proto-Indo-European *úp Proto-Indo-European *-er Proto-Indo-European *upér Proto-Hellenic *hupér Ancient Greek ῠ̔πέρ (hŭpér) Ancient Greek ῠ̔περ- (hŭper-)der. English hyper- Ancient Greek Γίγας (Gígas)der. Latin gigās, gigantem Vulgar Latin *gagantem Old French gaiantbor. Middle English geaunt English giant English hypergiant From hyper- + giant.

1. A star that is extremely massive and even more luminous than a supergiant.