すみ

Etymology 1
From, first appearing in 762. Cognate with.

In turn, from. Cognate with 🇨🇬, 🇨🇬, 🇨🇬.

Possibly derived from the homophonous  of verb, from the way that cinders are left after a fire has finished burning.

Possibly also related to.

Noun

 * 1)  charcoal
 * 2)  a coal or cinder from a fire
 * 3)   coal
 * 1)   coal
 * 1)   coal

Etymology 2
From, first appearing in the  of 720 with the phonetic spelling. Cognate with.

In turn, from. Cognate with 🇨🇬.

Possibly derived from the homophonous  of verb, from the way that cinders are left after a fire has finished burning.

Possibly also related to, from which India ink is made.

Noun

 * 1) ink
 * 2)  India ink

Etymology 3
From the verb, in turn from , from.

Noun

 * 1)  finish, completion, conclusion

Etymology 4
From, first appearing in the  of 712 with the phonetic spelling.

Considering the different pitch accent, this appears to be unrelated to the "charcoal; ink; finish" senses.

Noun

 * 1) interior corner (e.g., of a room or board surface), nook

Etymology 5
From. The use of the kanji is an example of, in this case, phonosemantic matching with a possible conflation of senses.

First cited to a text from 1833.

Noun

 * 1)  sourness, sour taste, sour flavor

Noun

 * 1)  hobby; taste, preference