brink (n.) Look up brink at Dictionary.com
"edge or border of a steep place," early 13c., from Middle Low German brink "edge," or from a Scandinavian source akin to Danish brink "steepness, shore, bank, grassy edge," from Proto-Germanic *brenkon, probably from PIE *bhreng-, variant of *bhren- "to project; edge" (source also of Lithuanian brinkti "to swell").