overpartial

If some may deem the panegyric of these early manhood friends slightly too ornate and diffuse for good taste, the reply is that it is a genuine outgush, and not an overpartial estimate.

Recollections and reflections : an auto of half a century and more, 1906

Craig spoke as if his verdict were probably overpartial to her.

The Fashionable Adventures of Joshua Craig; a Novel David Graham Phillips 1889

"Aye, I've grown overpartial to strangers of late; but ye hearken to me.

Seven Miles to Arden Ruth Sawyer 1925

"Thank you, ma'am, I ain't overpartial to tea, and my doctor tells me I need whisky.

Chester Rand or The New Path to Fortune Horatio Alger 1865