Webster’s Revised Unabridged Dictionary · 1913
Imbecile
Im′be·cile (ĭm′bē·sĭl or ·sēl; 277), a. [L. imbecillis, and imbecillus; of unknown origin: cf. F. imbécile.] Destitute of strength, whether of body or mind; feeble; impotent; esp., mentally wea; feeble-minded; as, hospitals for the imbecile and insane.
Syn. — Weak; feeble; feeble-minded; idiotic.
Im′be·cile, n. One destitute of strength; esp., one of feeble mind.
Im′be·cile, v. t. To weaken; to make imbecile; as, to imbecile men's courage. [Obs.] Jer. Taylor.