Words that come from Proto-Indo-European swā-n-

230 words across 41 languages descend from Proto-Indo-European swā-n- — including insane, insanity, sane, sanitary, sanitation, sanity, san, sanatorium.

See the etymology of swā-n- itself →

English (47)

Latin (29)

Italian (28)

Portuguese (19)

Spanish (14)

French (13)

Esperanto (11)

German (9)

Albanian (4)

Middle Dutch (4)

Catalan (3)

Romanian (3)

Middle High German (3)

Dutch (2)

Galician (2)

Aromanian (2)

Czech (2)

Translingual (2)

Japanese (2)

Finnish (2)

Old Portuguese (2)

Old French (2)

Norman (2)

Proto-Germanic (2)

Old Dutch (2)

Old High German (2)

Old Spanish (2)

Vulgar Latin (2)

Middle French (1)

Crimean Tatar (1)

Ladin (1)

Swedish (1)

Dalmatian (1)

Friulian (1)

Silesian (1)

Danish (1)

Haitian Creole (1)

Norwegian Bokmål (1)

Norwegian Nynorsk (1)

Serbo-Croatian (1)

Medieval Latin (1)