Where does “radar” come from?

radar (Dutch) comes from English RADAR, from English ranging, from English range, from Middle English rengen, from Old French rengier, from Old French reng, from Latin rencus, from Gaulish rekos — to set in order.

radar (Dutch): radar detection system operating by means of radio waves

Definitions

  1. radar detection system operating by means of radio waves

Ancestry of “radar”, step by step

StepLanguageWordMeaning
1EnglishRADARAcronym of radio detection and ranging
2Englishrangingpresent participle of range; Act of one who...
3EnglishrangeA line or series of mountains, buildings, etc; A...
4Middle Englishrengen
5Old Frenchrengierto line up; to form ranks
6Old Frenchrengplace; position
7Latinrencusrow; order, rank
8Gaulishrekos
9Proto-Celticreketito arrange
10Proto-Indo-European(H)rek-to set in order

Words derived from “radar

Every word from Proto-Indo-European (H)rek-Every word from Proto-Celtic reketiEvery word from Gaulish rekos