1690s, "applicable," from Latin apposit-, past participle stem of apponere "set near, set before; apply, give in addition; appoint, designate" (see apposite) + -ive. As a noun in grammar, "words in apposition," from 1847.
an appositive noun
apportion
apportionment
appose
apposite
apposition
appositive
appraisal
appraise
appraiser
appreciable
appreciate