From Middle Welsh athro (“teacher”), from Proto-Brythonic *alltrọw, from Proto-Celtic *altrawū (“foster-uncle”), from *aleti (“to nourish”). Related to Breton aotrou m (“lord, gentleman”). Doublet of alltraw (“godfather”).
athro m (plural athrawon or athrawion, feminine athrawes)
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.
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. |