/w/ is realized as /u/ between consonants.
The locative suffix is treated as though already given the connective vowel
/ë/, which is raised to /i/ before /n/ in a closed syllable.
An additional /w/ is then inserted as a transition sound between /w/ and /i/.
Note: this is a different phonological treatment of the same form that underlies "from the lake," each now associated with distinct meanings.