Wig (?), n. [Abbreviation from periwig.]
[1913 Webster]

1. A covering for the head, consisting of hair interwoven or united by a kind of network, either in imitation of the natural growth, or in abundant and flowing curls, worn to supply a deficiency of natural hair, or for ornament, or according to traditional usage, as a part of an official or professional dress, the latter especially in England by judges and barristers.
[1913 Webster]

2. An old seal; -- so called by fishermen.
[1913 Webster]

Wig tree. (Bot.) See Smoke tree, under Smoke.
[1913 Webster]

{ Wigg (?), Wig }, n. [Cf. D. wegge a sort of bread, G. weck, orig., a wedge-shaped loaf or cake. See Wedge.] A kind of raised seedcake. “Wiggs and ale.” Pepys.
[1913 Webster]