Where does “swnian” come from?

swnian (Welsh) comes from Welsh sŵn, from Middle English soun, from Anglo-Norman sun, from Old French son, from Vulgar Latin sum, from Latin suus, from Proto-Italic sowos, from Proto-Indo-European sewos — self.

swnian (Welsh): to grumble, to complain, to whine

Definitions

  1. to grumble, to complain, to whine

Ancestry of “swnian”, step by step

swnian traces back through two separate lines of ancestry.

via Welsh sŵn

StepLanguageWordMeaning
1Welshsŵnsound
2Middle Englishsounsound
3Anglo-Normansun—
4Old Frenchsonhis/hers/its
5Vulgar Latinsumto be, exist, have; to be there; to go
6Latinsuushis, her, its, their
7Proto-Italicsowoshis, her, its, their
8Proto-Indo-Europeansewos(one's) own; his, her, its
9Proto-Indo-Europeanswéself

via Welsh ian

StepLanguageWordMeaning
1Welshian—
Every word from Proto-Indo-European swé →Every word from Proto-Indo-European sewos →Every word from Proto-Italic sowos →