Where does “nesaf” come from?

nesaf (Welsh) comes from Welsh -af, from Middle Welsh -haf, from Proto-Brythonic -haβ̃, from Proto-Celtic *-isamos — forms superlative adjectives.

nesaf (Welsh): next

Definitions

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Ancestry of “nesaf”, step by step

StepLanguageWordMeaning
1Welsh-afverb suffix for the first-person singular present...
2Middle Welsh-hafused to form the superlative of an adjective
3Proto-Brythonic-haβ̃Forms the superlative of an adjective
4Proto-Celtic*-isamosforms superlative adjectives
Every word from Proto-Celtic *-isamos →Every word from Welsh -af →Every word from Middle Welsh -haf →