Part of speech: Noun
(Christianity) celebration of the Ascension of Christ into heaven; observed on the 40th day after Easter
Categories: Holy day of obligation
Part of speech: Noun
(New Testament) the rising of the body of Jesus into heaven on the 40th day after his Resurrection
Part of speech: Noun
(astronomy) the rising of a star above the horizon
Categories: Change of location, Travel
Ascension, Ascension of the lord, Ascension day, Ascending, Ascent
The word "ascension" comes from Latin ascēnsiō. It started in Old French ascension. Then it appeared in Middle English ascencioun.
Each language in this chain added phonetic changes that transformed the original sound.