seithongl

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Welsh

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Etymology

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From saith (seven) +‎ ongl (angle).

Pronunciation

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

Noun

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seithongl m (plural seithonglau, not mutable)

  1. heptagon
    Synonym: heptagon

Further reading

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  • 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