Simple past tense and past participle of verge.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "verged" in a sentence
"The accent was radically different from any Ethan had yet heard, so much so that the word verged on incomprehensibility."
"His expression verged on the idiotic; they were a scared pair, and it was only when the bright flush of guilt flooded her face that he recovered his senses in a measure and took off his hat."
"He turned away from the window with an expression that verged on pain."