Dictionary entry

Groin (4)

Webster's Dictionary 1913

Groin, v. t. [imp. & p. p.Groined (?); p. pr. & vb. n.Groining.] (Arch.) To fashion into groins; to build with groins.

The hand that rounded Peter's dome,

And groined the aisles of Christian Rome,

Wrought in a sad sincerity. Emerson.