sunthesis

• (North Wales) IPA^(key): /ˈsɨ̞nθɛsɪs/
• (South Wales) IPA^(key): /ˈsɪnθɛsɪs/

Being a word borrowed from English derived from Greek, the y in synthesis is pronounced /ɨ̞, ɪ/ rather than expected /ə/. To preserve consistency between pronunciation and spelling, some prefer to spell this word sunthesis. Nevertheless, synthesis is the more common spelling of the two. See pyramid/puramid, symbol/sumbol, system/sustem for similar examples.

sunthesis m (plural sunthesisau, not mutable)

1. Alternative spelling of synthesis

• suntheseiddio (“synthesise”)
• sunthetig (“synthetic”)

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