Webster's Revised Unabridged Dictionary · 1913

Splay

Splay , transitive verb

[Abbrev. of display.]

1.
To display; to spread. [Obsolete]
Our ensigns splayed. — Gascoigne
2.
To dislocate, as a shoulder bone.
3.
To spay; to castrate. [Obsolete or Provincial English]
4.
To turn on one side; to render oblique; to slope or slant, as the side of a door, window, etc. — Oxf. Gloss

Splay , adjective

Displayed; spread out; turned outward; hence, flat; ungainly; as, splay shoulders.
Sonwthing splay, something blunt-edged, unhandy, and infelicitous. — M. Arnold

Splay , adjective

(Architecture) A slope or bevel, especially of the sides of a door or window, by which the opening is made larged at one face of the wall than at the other, or larger at each of the faces than it is between them.