←
Proto-Indo-European (derived)
←
Proto-Indo-European (inherited)
←
Proto-Indo-European *sm̥- (affix)
←
Proto-Indo-European *-eh₂ (affix)
←
Proto-Albanian (inherited)
←
Proto-Albanian (inherited)
→
Romanian strungã (borrowed(ro/rup))
→
Serbo-Croatian struga (borrowed)