Selcouth - Strange; uncommon.
Percy had always been the odd one out in his family. He wasn't as mischievous and fun-loving as the twins; he wasn't as animal-mad as Charlie; he didn't like Quidditch the way Ron or Ginny did.
He'd always thought he was strange; too strange to ever fit in.
So when his Prefect badge came through the post and he walked into the Prefect Carriage for the first time and saw her smiling at him, as though he was just any other ordinary boy, it was a shock. A pleasant shock.
That was the moment Percy fell for Penelope Clearwater.