From Wiktionary, the free dictionary
Inherited from Proto-Slavic *rǫkavъ. By surface analysis, ръка́ (rǎká, “arm”) -ав (-av)
ръка́в • (rǎkáv) m
- sleeve (of a garment)
- Coordinate term: нога́в (nogáv)
- slough, branch, arm (of a river, stream)
- “ръкав”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Sofia: Bulgarian Academy of Sciences, 2014
- “ръкав”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Chitanka, 2010