A unique adjectival passive semantic drift for the pair: me’ušar ‘confirmed’ (adjectival passive (a)) – išer ‘confirmed’ (transitive (b)): a. dan Dan haya be.3sg.m.pst mamaš really me’ušar confirmed.sg.m me- ha- matana. from-the-gift.f ‘Dan was really happy about the gift.’ b. #ha-matana the-gift.f mamaš really ‘išra confirm.3sg.f.pst et acc dan. Dan