Where does “窟窿” come from?

窟窿 (Chinese) comes from Chinese 孔, from Proto-Sino-Tibetan (g/k)uŋ — hole; orifice; hole; orifice; inner part.

窟窿 (Chinese): hole; cavity; deficit; debt

Definitions

  1. hole; cavity; deficit; debt

Ancestry of “窟窿”, step by step

StepLanguageWordMeaning
1Chinese孔hole
2Proto-Sino-Tibetan(g/k)uŋhole; orifice; hole; orifice; inner part
Every word from Proto-Sino-Tibetan (g/k)uŋ →Every word from Chinese 孔 →