ˈkämbəˌnā]d.iv, kəmˈbīnə] adjective
Etymology: combinat ion + -ive
: tending or able to combine : marked by, relating to, or resulting from combination ; specifically of sound change : dependent on phonetic environment
the change of an originally short vowel into a long vowel in the ancestors of English field is combinative because of the vowel's being followed by a liquid and a homorganic voiced stop