Is a sound change from /l/ or /r/ to a voiced dental fricative attested in any languages?
(Furthermore is there some database for searching sound changes?)
Is a sound change from /l/ or /r/ to a voiced dental fricative attested in any languages?
(Furthermore is there some database for searching sound changes?)
One of the most famous cases is Polish, where old [r] first got palatalized before the front vowels into [rʲ] and then lost the palatalization and changed its quality to [ʐ], graphically <rz>
, e.g. Proto-Slavic *rěčь > Polish rzecz [ʐɛt͡ʂ] “thing, matter, action, deed”, one of the most often used Polish words, as in Rzeczpospolita [ʐɛt͡ʂ.pɔˈspɔ.li.ta] “(formal) Poland (the Polish state)”, from rzecz (“thing”) + pospolita (“common”), calque of Latin rēspūblica (“public affair”).
See “Loss of palatalization in certain environments” section of this Wikipedia article (History of Polish language > Phonetic processes from Proto-Slavic).