seithongl

Welsh

Etymology

From saith (“seven”) +‎ ongl (“angle”).

Pronunciation

• IPA^(key): /ˈsei̯θɔŋl/, [ˈsei̯θɔŋl̩]

Noun

seithongl m (plural seithonglau, not mutable)

1. heptagon

   Synonym: heptagon

Further reading

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