Where does “sonar” come from?

sonar (Old Spanish) comes from Latin sonare, from Latin sono, from Latin sonus, from Latin sonō, from Proto-Italic *swonaō — to sound, resound.

Ancestry of “sonar”, step by step

StepLanguageWordMeaning
1Latinsonarepresent active infinitive of sonō; second-person...
2Latinsonodative singular of sonus; ablative singular of...
3Latinsonussound, noise; pitch; speech; tone, character,...
4Latinsonōto sound, resound, make a sound or noise (and various sounds in-context)
5Proto-Italic*swonaōto sound, resound

Words derived from “sonar

Every word from Proto-Italic *swonaōEvery word from Latin sonōEvery word from Latin sonus