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From Middle Welsh athro, athrawon (teacher), from Proto-Celtic *altrawū (foster-uncle), from *aleti (to nourish). Related to Breton aotrou m (lord, gentleman).



athro m (plural athrawon)

  1. teacher
  2. professor

Usage notes[edit]

When used to mean "teacher", this term refers only to males, the coordinate female term being athrawes. The plural athrawon serves when talking of a group of both genders. When used to mean "professor", athro it is written with the definite article and upper case A ("Yr Athro"), has no specific gender reference and used for a female or a male.

Coordinate terms[edit]

Derived terms[edit]


Welsh mutation
radical soft nasal h-prothesis
athro unchanged unchanged hathro
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

Further reading[edit]

  • Matasović, Ranko (2009) Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN