arc-boutantn.
/ɑːbuːˈtɒ̃//ɑːkbuːˈɒ̃/ Architecture.
An arched or ‘flying’ buttress, ‘whose object is to counteract the thrust of the main vault of the edifice’ (Gwilt).
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buttressc1330
botraillec1475
foot wharf1576
shouldering piece1585
flying buttress1669
buttressing1672
counterfort1728
arc-boutant1731
alette1810
flyer1912
arch-buttress-
1731 in N. Bailey Universal Etymol. Eng. Dict.
1767 A. C. Ducarel Anglo-Norm. Antiq. 27 The walls of this Church are cased on the outside by thirty-two arc-boutants or buttresses.
1823 J. Rutter Delineations of Fonthill 9 The ceiling is divided..by a broad arc-boutant in the middle.
This entry has not yet been fully updated (first published 1885; most recently modified version published online September 2018).
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n.1731