Proto-Slavic *strьmъ

→ Czech strom (mention)

→ Czech strmý (inherited)

→ Old Church Slavonic оустрьмити (cognate)

→ Russian стремглав (derived)

→ Russian стремить (cognate)

→ Serbo-Croatian strm (inherited)

→ Serbo-Croatian стрм (inherited)

→ Slovak strom (mention)

→ Slovak strmý (inherited)

→ Silesian strům (mention)