Dictionary entry

Herculean

Webster's Dictionary 1913

Her‐cu″le‐an (?), a. [L. herculeus, fr. Hercules: cf. F. herculéen. See Hercules.]

1. Requiring the strength of Hercules; hence, very great, difficult, or dangerous; as, an Herculean task.

2. Having extraordinary strength or size; as, Herculean limbs. “Herculean Samson.” Milton.