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 ...
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 ...