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.
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.