The story
- Proto-Italic*aikʷos?
- Old Latinaiquos
- Latinaequus
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Latinaequālis
- Middle Englishequal
- Englishequal
- English todayequalize
First known use, by meaning
- 16th–19th c. To be equal to; to equal, to rival.
- from 20th c. To make the scoreline equal by scoring points.
Etymology from Wiktionary, CC BY-SA 4.0.