This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
嵈 is a rare kanji combining 山 (mountain) with 爰, which likely contributes a phonetic element. The exact historical development is uncertain.
With 山 (mountain) on the left, 嵈 likely relates to a mountain or a geographical feature, but its exact meaning is unclear. Picture a mysterious mountain with an unknown name.
For カン, imagine a can sitting on top of the mountain: can -> カン, and the mountain is named after the can.