godan verb (-u), transitive verb
pay; pay out
General verb for paying money, bills, taxes, or costs. Transitive godan verb.
家賃を支払うのを忘れていた。
I forgot to pay the rent.
クレジットカードで支払えますか。
Can I pay by credit card?
Compound of 支 (ateji for 'support'/'branch') and 払う (to pay). The exact derivation is uncertain, but the spelling is conventionally associated with paying out money.