olympiad

The story

1. Ancient Greek · derived fromὈλυμπῐᾰ́ς“ancient Olympic Games, 4-year period between these games”
2. Latin · derived fromOlympias“4-year period between Olympic Games”
3. Old French · derived fromOlympiade“ancient Olympic games, 4-year period between these games”
4. Middle French · derived fromOlympiade
5. Middle English · inherited fromOlimpias
6. English todayOlympiad

From the plural forms Olimpiades, Olympiades, and Olympiadiz of Middle English Olimpias and Olympias (“ancient Olympic Games, 4-year period between these games, intense battle or competition”) from Middle French Olympiade and Old French Olympiade (“ancient Olympic games, 4-year period between these games”), from Latin Olympias (“4-year period between Olympic Games”) whose genitive form was Olympiados or Olympiadis), from Ancient Greek Ὀλυμπῐᾰ́ς (Olumpĭắs, “ancient Olympic Games, 4-year period between these games”) whose plural form was Ὀλυμπῐᾰ́δες (Olumpĭắdes), from Ὀλυμπῐ́ᾱ (Olumpĭ́ā, “Olympia”), the town in ancient Greece where the games were held, + -ᾰ́ς (-ắs, a suffix forming feminine adjectives or nouns), from either Ὀλῠ́μπῐος (Olŭ́mpĭos, “of or related to Mount Olympus, Olympian, the Olympian Zeus”) or Ὄλῠμπος (Ólŭmpos, “Mount Olympus”) + -ῐ́ᾱ (-ĭ́ā, suffix forming feminine abstract nouns). The use of olympiad for academic competitions aspiring to the level of the Olympic Games was first popularized by the International Mathematical Olympiad, a calque of its Romanian name Olimpiada Internațională de Matematică.