Welsh

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Etymology

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From peth (thing) +‎ -ach.

Pronunciation

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Noun

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pethach m pl

  1. unimportant things, trifles
  2. (South Wales, colloquial) plural of peth
    Synonym: pethau

Mutation

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Welsh mutation
radical soft nasal aspirate
pethach bethach mhethach phethach
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.