adverb, noun or participle which takes 'suru'
touching; moving to tears
Mimetic adverb describing a sudden, gentle emotional stirring, often leading to tears. Can be used with する to mean 'to be moved' or 'to feel a lump in one's throat'.
See also: ほろり
彼の話を聞いて、ほろっとした。
Hearing his story, I was moved to tears.
映画のラストシーンでほろっと泣いてしまった。
I shed a few tears at the movie's final scene.