From Latin 'invertere' (to turn upon itself) — literally turning upside down, root of 'inverse' and 'invertebrate.'
To put upside down or in the opposite position, order, or arrangement (verb); something that is inverted; in dated psychology, a person whose sexual instincts are inverted (noun).
From Latin invertere (to turn upside down, to turn inside out, to transpose, to reverse), composed of in- (in, into, upon — here intensifying or reversing) and vertere (to turn). Vertere derives from PIE *wert- (to turn, to wind), one of the most generative motion roots in Indo-European: compare Sanskrit vartate (turns, rolls), Lithuanian versti (to turn over), Old Church Slavonic vrŭtěti (to turn), Gothic wairþan (to become, literally to turn into). The same root underlies