COLONNADE

arcade, colonnade

(noun) a structure composed of a series of arches supported by columns

colonnade

(noun) structure consisting of a row of evenly spaced columns

Source: WordNet® 3.1

Etymology

Noun

colonnade (plural colonnades)

A series of columns at regular intervals.

A peristyle.

A portico or stoa.

A regular row of anything, such as trees.

Source: Wiktionary

Col`on*nade", n. Etym: [F. colonnade, It. colonnata, fr. colonna column. See Colonel.] (Arch.)

Definition: A series or range of columns placed at regular intervals with all the adjuncts, as entablature, stylobate, roof, etc.

Note: When in front of a building, it is called a portico; when surrounding a building or an open court or square, a peristyle.

Source: Webster’s Unabridged Dictionary 1913 Edition