Which of these words are cognates (share a common etymology)?
住【す】む ("live") (rarely 棲む or 栖む)
澄【す】む ("clear") (rarely 清む)
According gogen allguide and several dictionaries such as the ...
I have noticed that there are a number of verbs in Japanese which have common alternative forms, especially potential form, but these forms have identical meanings.
One of these is 焼く, which appears ...