→
Bulgarian лъка (inherited)→
Czech louka (inherited)→
Old Church Slavonic лѫка (inherited)→
Latvian lanka (cognate)→
Romanian luncă (borrowed)→
Serbo-Croatian luka (inherited)→
Serbo-Croatian лука (inherited(sh/ru))→
Serbo-Croatian лука (inherited)→
Slovak lúka (inherited)