Mate

"We told Dumbledore we wanted to tell you what was going on," said Ron. "We did, mate."
(OP4)

"Listen - Ron - well done, mate."
(OP9)

"Have we ever come off better for mixing with any of Hagrid's monster mates?"
- Ron (OP31)

"We'll just have to wing it, mate."
- Ron (DH26)

"It hasn't exactly been a picnic, mate."
- Ron (DH26)