tio̍k-tsiǎm逐漸

gradually

gradually; little by little; step by step; progressively

adverb

English Wiktionary, “逐漸” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E9%80%90%E6%BC%B8 · confidence: Medium (Wiktionary, Hokkien)