formative
nounEtymology Etymology 2 sense 1 (“thing which causes formation to occur”) is derived from the noun. Etymology 2 sense 2.1 (“language unit”) is borrowed from German Formativ, a noun use of formativ (adjective), from Middle French formatif, from Old French formatif (see etymology 1).
A thing which causes formation to occur.
- [T]his museum of the state of flux [Newmarket, Suffolk] has a climate unrivalled for the production of the British temperament. Not without a due proportion of that essential formative of character, east wind, it has at once the hottest sun, the coldest blizzards, the wettest rain, of any place of its size in 'the three kingdoms.'1907, John Galsworthy, “The Happy Hunting-ground”, in The Country House, London: William Heinemann, →OCLC, part I, page 33:
Human sciences, Linguistic morphology, Linguistics, Morphology, Sciences A language unit, typically a morph, that has a morphological function (that is, forming a word from a root or another word).
Human sciences, Linguistic morphology, Linguistics, Morphology, Sciences Synonym of derivative (“a word that derives from another one”).