"O’Hara came up with Moira’s vague, European-parlor accent, as well as her obsession with wigs. She also elevated the character’s grande-dame vocabulary into the stratosphere of absurdity with words like unasinous."
https://getpocket.com/explore/item/catherine-o-hara-queen-of-schitt-s-creek-talks-gilda-radner-friendship-more