Where does “tonni” come from?
tonni (Welsh) comes from Welsh tôn, from Middle Welsh tonn, from Proto-Brythonic *tonn, from Proto-Celtic tundā, from Proto-Indo-European (s)tewd-, from Proto-Indo-European stew- — to praise, laud.
tonni (Welsh): to ripple, to oscillate
Definitions
- to ripple, to oscillate