Proto-Slavic *lěnъ

→ Czech líný (inherited)

→ Old Church Slavonic лѣнъ (inherited)

→ Lithuanian lėnas (cognate)

→ Russian ленивый (mention)

→ Russian лениво (mention)

→ Russian леность (mention)

→ Serbo-Croatian lijen (inherited)

→ Serbo-Croatian лијен (inherited)

→ Serbo-Croatian лен (inherited)

→ Serbo-Croatian lenj (inherited)

→ Serbo-Croatian лењ (inherited)

→ Slovene len (inherited)