Pig (?), n. A piggin. [Written also pigg.]
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Pig, v. t. & i. [imp. & p. p. Pigged (?); p. pr. & vb. n. Pigging (?).] 1. To bring forth (pigs); to bring forth in the manner of pigs; to farrow.
[1913 Webster]

2. To huddle or lie together like pigs, in one bed.
[1913 Webster]