Mena (f)
original: мена
air reservoir: flexible (usually of animal skin), ready for the insertion of stocks
Mentioned in Maksim Mutapčić, »Banatske gajde« (or »Gajde u Banatu«) in Rad Muzeja Vojvodine (ISSN: 0353-8311) [NB WS (May 2026): Source not yet detected!].