verge upon

Like other farmers, they are conservative and adhere to old rules or fancies, which in some cases verge upon superstition.

Even then he but vaguely understood, had not rightly guessed the verge upon which she was treading.

The eastern portions of the State now verge upon an era of long-delayed activity.

He steps from planet to planet, and if he cannot enter immensity, he can verge upon its borders.

The situation began to verge upon the ridiculous, despite the fact that it was in a measure embarrassing.