Where does “radar” come from?

radar (Latin) comes from Latin rado, from Proto-Italic razdō, from Proto-Indo-European rh₁d-dʰ-, from Proto-Indo-European reh₁d- — to scrape, scratch, gnaw.

radar (Latin): first-person singular future passive indicative...

Definitions

  1. first-person singular future passive indicative...

Ancestry of “radar”, step by step

StepLanguageWordMeaning
1LatinradoI scrape, shave, scratch; I rub, smooth; I touch...
2Proto-Italicrazdō—
3Proto-Indo-Europeanrh₁d-dʰ-—
4Proto-Indo-Europeanreh₁d-to scrape, scratch, gnaw
Every word from Proto-Indo-European reh₁d- →Every word from Proto-Indo-European rh₁d-dʰ- →Every word from Proto-Italic razdō →