consisting of morphemes that are combined differently from their mode of combination as separate words in a phrase, as bookstore, which is an asyntactic compound, while the same elements are combined syntacticallyin store for books
Word origin
[1875–80; a-6 + syntactic]This word is first recorded in the period 1875–80. Other words that entered Englishat around the same time include: Diaspora, authoritarian, hat trick, massage, overdraft