"The Oxford English Dictionary (OED) and online Wiktionary indicate its Latin source as assumere (""accept, to take to oneself, adopt, usurp""), which is a conjunction of ad- (""to, towards, at"") and sumere (to take)."
"Oxford Engliš Dictionary (OED) əd Wiktionnaire dǎɣ tasiret saknet as tabarat ən latine taqal asinihid ("tiridawt,adakal ən manes, ilmadan, usurɗer"), tataqalat ayertayan ən ad-("à, ibret, dǎɣ ") ən sumere (adakal)".