BOLLARD
bollard, bitt
(noun) a strong post (as on a wharf or quay or ship for attaching mooring lines); “the road was closed to vehicular traffic with bollards”
Source: WordNet® 3.1
Etymology
Noun
bollard (plural bollards)
(nautical) A strong vertical post of timber or iron, fixed to the ground and/or on the deck of a ship, to which the ship's mooring lines etc are secured.
A similar post preventing vehicle access to a pedestrian area, to delineate traffic lanes, or used for security purposes.
Source: Wiktionary
Bol"lard, n. Etym: [Cf. Bole the stem of a tree, and Pollard.]
Definition: An upright wooden or iron post in a boat or on a dock, used in
veering or fastening ropes. Bollard timber (Naut.), a timber, also
called a knighthead, rising just within the stem in a ship, on either
side of the bowsprit, to secure its end.
Source: Webster’s Unabridged Dictionary 1913 Edition