貸す
かす · kasu · JLPT N5 · verb-godan
to lend
💴🤝 kasu sounds like cash-u: I lend cash to you
貸 has 貝 (shell, the old money) at the bottom, so the kanji is about money changing hands. Kasu goes outward: I kasu, you receive. Its partner 借りる (kariru) is the reverse, to borrow.