This list is far from exhaustive. 2nd declension two-syllable male names with stems ending in ‹d,t› never undergo consonant shift (Uldis, Artis, Gatis, and so forth.) Besides body parts ("acs", "auss") there is a number of other words that historically do not undergo consonant shift, e.g., the name of the town of Cēsis. Words with stem-final "-st" are not subject to consonant shift this includes all feminine forms of "-ist" nouns (e.g., "feministe" and so forth.) Further in a number of words consonant shift has been dropped to avoid homophony, thus gen.pl. of "passport" "pase" would be homophonous with "of (our-, your-, their-) selves" "pašu", the same goes for "gāze" "gas" which would be homophonous with 1st pers. indicative of the verb "gāzt" "to topple." Perhaps only a small number could be genuinely attributed to euphony, e.g., "gaišmaša" due to two concomitant sounds occurring within a three-syllable word which some might find "unpleasantly sounding."