the.com/faculty

means The body of teachers and scholars at a school or college, or more broadly, a specific mental or physical ability someone possesses.

from From Latin 'facultas,' meaning 'ability' or 'capability,' itself related to 'facilis' (easy to do) and the verb 'facere' (to make or do). The word first described a personal power or skill — a faculty for languages, say — before it stretched, in medieval universities, to mean a branch of learning or a group of teachers authorized to profess it. So the sense of 'the professors' grew out of the sense of 'having the ability to teach' — the institution borrowed its name from the very capacity it was meant to certify.