Most commonly heard in stores in the context of offering help to a customer. For example, Posso arender o senhor? translates as: Can I help you sir? In this context though, “help” really means, to attend. Always choose this verb in transactional situations rather than ajudar.
atender
to attend to
euatendo
você, eleatende
nósatendemos
vocês, elesatendem
Complete conjugation.
Você já foi atendido? Have you already been helped?
Você pode me atender? Can you help me?