Etymology

lactonic

L1A1C3T1O1N1I1C3

Today it means: Of, relating to, or derived from, lactone. Full definition →

English lactone ← German Keton ← Latin lac
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The story

  1. Latinlac
  2. Englishlacto-
  3. GermanKeton
  4. Englishketone
  5. Englishlactone
  6. English todaylactonic

From lactone + -ic.

Etymology from Wiktionary, CC BY-SA 4.0.