Etymology

sexagesimal

sexa·ge·si·mal
S1E1X8A1G2E1S1I1M3A1L1

Today it means: Of, related to, or based on the number sixty. Full definition →

Medieval Latin sexagesimalis ← Proto-Indo-European *h₂élisder.? ← Latin sexāgēsimus
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The story

  1. Proto-Indo-European*sweḱsḱomt
  2. Latinsexāgintā
  3. Latinsexāgēsimus
  4. Proto-Indo-European*h₂el-
  5. Proto-Indo-European*h₂élisder.?
  6. Medieval Latinsexagesimalis
  7. English todaysexagesimal

From Medieval Latin sexagesimalis, from sexāgēsimus (“sixtieth”) + -ālis (“-al”), from sexāgintā (“sixty”). Cognate with sexagenary and sexagenarian. Cf. sextal.

Etymology from Wiktionary, CC BY-SA 4.0.