-turus

== Latin == === Etymology === Possibly derived ultimately from a form of Proto-Indo-European *-tus (found in the supine suffix -tum, -tū) followed by Proto-Indo-European *-rós (adjective-forming suffix). The suffix *-tūro- is only attested in Latin, so its creation may postdate Proto-Italic. Fortson 2007 hypothesizes that the starting point was pre-Latin *futūros (“going to be”) (Latin futūrus), built on the instrumental singular *futū of a pre-Latin abstract noun *futus by analogy to preexisting time-adjectives ending in *-ros, such as *mātūros (“early, soon”) (Latin mātūrus) and *sēros (“late”) (Latin sērus). Fortson mentions and rejects the alternative etymologies deriving it from the agent noun suffix -tōr-, or from the supine followed by a lost infinitive *esom (with an assumed development from *-tū *esom to *-tūrom, followed by reanalysis as an adjective). === Pronunciation === (Classical Latin) IPA(key): [ˈtuː.rʊs] (modern Italianate Ecclesiastical) IPA(key): [ˈtuː.rus] === Suffix === -tūrus ending of the future active participle ==== Usage notes ==== Usually formed on the same stem as the supine and perfect passive participle/perfect active participle. However, a small number of verbs show distinct stems (e.g. morior, perfect active participle mortuus, future active participle moritūrus). ==== Declension ==== First/second-declension adjective. === References ===