Words that come from Proto-Indo-European “krewp-”

109 words across 38 languages descend from Proto-Indo-European krewp- — including ruffian, ruffianly, ruffianism, corrugator, ruga, ruelle, corrugate, rugate.

See the etymology of krewp- itself →

Italian (17)

English (13)

Latin (13)

Finnish (8)

French (6)

Polish (5)

Serbo-Croatian (4)

Portuguese (4)

Czech (3)

Russian (2)

Galician (2)

Spanish (2)

Proto-Slavic (2)

Old Norse (2)

Proto-Indo-European (2)

Proto-Balto-Slavic (2)

Icelandic (1)

Middle French (1)

Albanian (1)

Frankish (1)

Irish (1)

Aromanian (1)

Yiddish (1)

Greek (1)

Old High German (1)

Westrobothnian (1)

Proto-Finnic (1)

Norman (1)

Old French (1)

Lower Sorbian (1)

Proto-Germanic (1)

Occitan (1)

Old Portuguese (1)

Old English (1)

Venetian (1)

Vulgar Latin (1)

Old Occitan (1)

Middle English (1)