Etymology

intentionally

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Today it means: In an intentional manner; on purpose. Full definition →

Proto-Germanic *līką ← Proto-Indo-European *leyg- ← English intentional
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The story

  1. Proto-Indo-European*h₁én
  2. Proto-Italic*en
  3. Proto-Italic*en-
  4. Latinin-
  5. Latintendō
  6. Latinintendō
  7. Medieval Latinintentiō
  8. Proto-Indo-European*h₂el-
  9. Proto-Indo-European*h₂élisder.?
  10. Medieval Latinintentiōnālis
  11. Englishintentional
  12. Proto-Indo-European*leyg-
  13. Proto-Germanic*līką
  14. English todayintentionally

From intentional + -ly.

Etymology from Wiktionary, CC BY-SA 4.0.