The New York Stock Exchange started out as a coffee house.
aphthous
(pathology) Of, or relating to aphtha.
Source: Wiktionary
Aph"thous a. Etym: [Cf. F. aphtheux.]
Definition: Pertaining to, or caused by, aphthæ; characterized by aphtæ; as, aphthous ulcers; aphthous fever.
Source: Webster’s Unabridged Dictionary 1913 Edition
27 June 2025
(adjective) having four equal sides and four right angles or forming a right angle; “a square peg in a round hole”; “a square corner”
The New York Stock Exchange started out as a coffee house.