NIPPERING

Verb

nippering

present participle of nipper

Source: Wiktionary

NIPPER

Nip"per, n.

1. One who, or that which, nips.

2. A fore tooth of a horse. The nippers are four in number.

3. A satirist. [Obs.] Ascham.

4. A pickpocket; a young or petty thief. [Old Cant]

5. (Zoöl.) (a) The cunner. (b) A European crab (Polybius Henslowii).

Source: Webster’s Unabridged Dictionary 1913 Edition