Where does “sonar” come from?

sonar (Catalan) comes from Old Catalan sonar, from Latin sonō, from Proto-Italic *swonaō — to sound, resound.

sonar (Catalan): to sound, to make a sound; to ring, to buzz;...

Definitions

  1. to sound, to make a sound; to ring, to buzz;...

Ancestry of “sonar”, step by step

sonar traces back through two separate lines of ancestry.

via Old Catalan sonar

StepLanguageWordMeaning
1Old Catalansonar
2Latinsonōto sound, resound, make a sound or noise (and various sounds in-context)
3Proto-Italic*swonaōto sound, resound

via English SONAR

StepLanguageWordMeaning
1EnglishSONARAcronym of sound navigation and ranging
Every word from Proto-Italic *swonaōEvery word from Latin sonōEvery word from Old Catalan sonar