teething

noun Dentistry.

1. eruption of the deciduous teeth, especially the phenomena associated with their eruption.

verb (used without object), teethed, teeth·ing.

1. to grow teeth; cut one’s teeth.

verb

1. (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.

1. The eruption or cutting of the teeth.