expression, i-adjective, auxiliary adjective
always; forever; never stop ...ing
Attaches to the -te form of a verb to express that the action or state continues without stopping. Often used in emotional or emphatic contexts.
See also: 止む
彼女のことを思ってやまない。
I never stop thinking about her.
平和を願ってやまない。
I never stop wishing for peace.
expression, i-adjective, auxiliary adjective
Used with verbs of hoping, wishing, or desiring to emphasize the depth of the feeling. Similar to sense 1 but glossed separately as an intensifier.
ご成功を祈ってやみません。
I sincerely wish for your success.
止む is the base verb meaning 'to stop' (intransitive). 止まない is its negative form used as an auxiliary adjective after the -te form, meaning 'not stop'.
Negative form of the verb 止む (to stop). The auxiliary use after the -te form of a verb developed from the literal meaning 'not stop doing'.