惜しむ
おしむ · oshimu · JLPT N1 · verb-godan
to value
💰💎 惜 = heart 忄 + past 昔: treasure what is gone, so you save, value, or regret.
Frugal, valuing, and regretting all come from holding dear something that is slipping away or running out. Heart plus long-ago: you cling to what is passing. Save it, prize it, or mourn its loss.