一いち日にち増ましにいちにちましにじ字FuriganaMeanings1adverbday by day; with each passing dayDescribes a gradual change or increase that becomes more noticeable every day. Often used with verbs like 増す, 強まる, or 良くなる.春はるが近ちかづいて、一いち日にち増ましに暖あたたかくなっている