also -art, from Old French -ard, -art, from German -hard, -hart "hardy," forming the second element in many personal names, often used as an intensifier, but in Middle High German and Dutch used as a pejorative element in common nouns, and thus passing into Middle English in bastard, coward, blaffard ("one who stammers"), etc. It thus became a living element in English, as in buzzard, drunkard. The German element is from Proto-Germanic *-hart/*-hard "bold, hardy," from PIE root *kar- "hard."
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Definitions of bollard
a strong post (as on a wharf or quay or ship for attaching mooring lines);
the road was closed to vehicular traffic with bollards