/ ˌpəʊstpəˈzɪʃn; NAmE ˌpoʊst-/ noun
( grammar ) a word or part of a word that comes after the word it relates to, for example '-ish' in 'greenish'
► post·pos·ition·al / -ʃənl; NAmE / adjective
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WORD ORIGIN
mid 19th cent.: from preposition , by substitution of the prefix post- for pre- .