diemwnt - Wiktionary, the free dictionary

From Middle English dyamaunt.

• (North Wales) IPA^(key): /ˈdjɛmʊnt/
  • (South Wales, also colloquial) IPA^(key): /ˈd͡ʒɛmʊnt/

diemwnt m (plural diemyntau or diemwntau or diemawns)

1. (uncountable) diamond (material)
2. (countable) diamond (gemstone)
3. (geometry) rhombus, especially when oriented so that its longer axis is vertical.

   Synonyms: rhombws, lleddfbetryal, gwyrongl

• diemyntau (“diamonds in card games”)

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “diemwnt”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies