English
imbecilitate
From imbecility + -ate (verb-forming suffix); compare -itate and Medieval Latin imbēcillitō.
Formed from imbecility + -ate
Latin imbēcillus ‘weak, feeble’
Classical Latin imbēcillitās ‘weakness, feebleness’
Middle French imbecilité
Middle English inbecillite
English imbecility
Today it means
verb To weaken, as to the body or the mind; to enfeeble.
Language periods are conventional ranges, not dates for this word.
Etymograph / imbecilitate