Proto-Slavic *trudъ

→ Bulgarian труд (inherited)

→ Old Church Slavonic троудъ (inherited)

→ Macedonian труд (inherited)

→ Polish trud (inherited)

→ Romanian trudi (affix)

→ Romanian trudă (mention)

→ Romanian trudnic (mention)

→ Russian труд (inherited)

→ Serbo-Croatian trud (inherited)

→ Serbo-Croatian труд (inherited)