Main Entry: pre·sup·pose

Pronunciation: \ˌprē-sə-ˈpōz\

Function: transitive verb

Etymology: Middle English, from Middle French presupposer, from Medieval Latin praesupponere (perfect indicative praesupposui), from Latin prae- + Medieval Latin supponere to suppose — more at suppose

Date: 15th century

1 : to suppose beforehand
2 : to require as an antecedent in logic or fact

— pre·sup·po·si·tion \(ˌ)prē-ˌsə-pə-ˈzi-shən\ noun

— pre·sup·po·si·tion·al \-ˈzish-nəl, -ˈzi-shə-n^əl\ adjective