- eruption of the deciduous teeth, especially the phenomena associated with their eruption.
verb (used without object), teethed, teeth·ing.
- to grow teeth; cut one’s teeth.
- (intr) to cut one’s baby (deciduous) teeth
n.1724, verbal noun from teethe (v.). v.early 15c., probably from an unrecorded Old English verb *teþan, from toþ (see tooth). Related: Teethed; teething. n.
- The eruption or cutting of the teeth.