also: のたんびに
expression, auxiliary
every time; whenever; on the occasion of
Attaches to nouns or dictionary-form verbs to express 'every time X happens' or 'whenever X'. Cross-referenced with 度に, which is the same pattern without の.
See also: たびに
Every time I see her, she tells me a new story.
Whenever I listen to this song, I remember my hometown.
Colloquial or dialectal variant with ん; less common in standard writing.
Combination of the genitive particle の and the noun 度 (たび, 'time, occasion') plus the particle に. The pattern grammaticalized into a conjunctive expression meaning 'every time'.