idiosyncrasy - vocabulary

  edgood  —  Grammar Tips

A characteristic, mental quality, or habit peculiar to an individual or group.
“What’s to be done? Here’s the cottage, taking one time with another, will produce, say seventy pounds a year. I think we may safely put it down at that. Well!—That’s all we’ve got,” said my aunt; with whom it was an idiosyncrasy, as it is with some horses, to stop very short when she appeared to be in a fair way of going on for a long while.

—Charles Dickens David Copperfield (1850)