Náslovné mutace keltských jazyků jakožto sandhinový jev?

Taking Irish and Welsh as an example, this contribution illustrates possible relationship between mutations and sandhi changes in Celtic languages. As historical-comparative reconstructions have suggested, Celtic mutations originated from sandhi processes, though this fact has become blurred in the course of the development of the languages. On the other hand, some sandhi processes (i.e. changes conditioned by phonetic and phonological features) as contrasted with mutations (i.e. changes conditioned by grammatical features) are still operative even in the modern languages, cf. /ṛ/ [ṛ] > /r/ [r] in Welsh. The article compares soft mutation, nasal mutation and mutation of aspiration in Welsh with soft mutation and so-called eclipsis (nasal mutation) in Irish. The description is carried out synchonically, mostly from a phonetic-phonological perspective, with a particular emphasis on standard forms of the languages.