n. 25B6; noun
the verge of the lake : EDGE, border, margin, side, brink, rim, lip; fringe, boundary, perimeter; poetic/literary bourn, marge, skirt.
Spain was on the verge of an economic crisis : BRINK, threshold, edge, point.
25B6; verb a degree of caution that verged on the obsessive : APPROACH, border on, be close/near to, be tantamount to; tend towards, approximate to, resemble.