English
Herculean
From Hercules + -an.
A compound of Hercules + -an
Proto-Indo-European *ḱlew- ‘to hear’
Ancient Greek Ἥρᾱ ‘Hera’
Ancient Greek Ἡρακλῆς
Etruscan 𐌇𐌄𐌓𐌂𐌋𐌄
Latin Herculēs
English Hercules
Today it means
adj Of extraordinary might, power, size, etc.; suggesting Hercules in size or strength.
Language periods are conventional ranges, not dates for this word.
Etymograph / Herculean