LOUVER
louver, louvre, fin
(noun) one of a set of parallel slats in a door or window to admit air and reject rain
Source: WordNet® 3.1
Etymology
Noun
louver (plural louvers)
A type of turret on the roof of certain medieval buildings designed to allow ventilation or the admission of light. [from 14th c.]
(chiefly in plural) A series of sloping overlapping slats or boards which admit air and light but exclude rain etc. [from 16th c.]
Any of a system of slits, as in the hood of an automobile, for ventilation.
Anagrams
• Louvre, louvre, velour
Source: Wiktionary
Lou"ver, Lou"vre, n. Etym: [OE. lover, OF. lover, lovier; or l'ouvert
the opening, fr. overt, ouvert, p. p. of ovrir, ouvrir, to open, F.
ouvrir. Cf. Overt.] (Arch.)
Definition: A small lantern. See Lantern, 2 (a) [Written also lover,
loover, lovery, and luffer.] Louver boards or boarding, the sloping
boards set to shed rainwater outward in openings which are to be left
otherwise unfilled; as belfry windows, the openings of a louver, etc.
– Louver work, slatted work.
Source: Webster’s Unabridged Dictionary 1913 Edition