Etymology

lingual

L1I1N1G2U1A1L1

Today it means: Related to, near, or on the side toward the tongue. Full definition →

Latin linguāli ← Proto-Indo-European *h₂élisder.? ← Proto-Italic *dn̥ɣwā
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The story

  1. Proto-Indo-European*dn̥ǵʰwéh₂s
  2. Proto-Italic*dn̥ɣwā
  3. Latindingua
  4. Latinlingua
  5. Proto-Indo-European*h₂el-
  6. Proto-Indo-European*h₂élisder.?
  7. Latinlinguāli
  8. English todaylingual

Learned borrowing from Medieval Latin linguālis, from lingua (“the tongue; a language, speech”) + -ālis (“-al”, adjectival suffix); equivalent to lingua + -al. Doublet of lingualis.

Etymology from Wiktionary, CC BY-SA 4.0.