Etymology

infinitival

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Today it means: Of, pertaining to, or formed from an infinitive. Full definition →

Proto-Indo-European *h₂élisder.? ← English infinitive
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The story

  1. Englishinfinitive
  2. Proto-Indo-European*h₂el-
  3. Proto-Indo-European*h₂élisder.?
  4. English todayinfinitival

From infinitive + -al.

Etymology from Wiktionary, CC BY-SA 4.0.