Etymology

heterosquare

H4E1T1E1R1O1S1Q10U1A1R1E1

Today it means: An n-by-n arrangement of n² numbers such that the numbers in each row, in each column and along both diagonals all have different sums. Full definition →

English square ← Ancient Greek ἕτερος (héteros) ← Proto-Hellenic *hə́teros
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The story

  1. Proto-Indo-European*sem-
  2. Proto-Indo-European*sḿ̥teros
  3. Proto-Hellenic*hə́teros
  4. Ancient Greekἕτερος (héteros)
  5. Englishhetero-
  6. Englishsquare
  7. English todayheterosquare

From hetero- + square.

Etymology from Wiktionary, CC BY-SA 4.0.