From རྐུབ་ཀྱག (rkub kyag, “chair, seat”) + རིང་པོ (ring po, “long”). Compare Chinese 長椅 / 长椅 (chángyǐ, literally “long chair”).
རྐུབ་ཀྱག་རིང་པོ • (rkub kyag ring po)