v. i. [ F. grogner to grunt, grumble. ] To grunt to growl; to snarl; to murmur. [ Obs. ] Chaucer. [ 1913 Webster ]
Bears that groined coatinually. Spenser. [ 1913 Webster ]
n. [ Icel. grein distinction, division, branch; akin to Sw. gren, branch, space between the legs, Icel. greina to distinguish, divide, Sw. grena to branch, straddle. Cf. Grain a branch. ]
v. t.
The hand that rounded Peter's dome,
And groined the aisles of Christian Rome,
Wrought in a sad sincerity. Emerson. [ 1913 Webster ]
n. [ F. groin, fr. grogner to grunt, L. grunnire. ] The snout of a swine. [ Obs. ] Chaucer. [ 1913 Webster ]
a. (Arch.) Built with groins;
[ 1913 Webster ]