Tar (?), n. [Abbrev. from tarpaulin.] A sailor; a seaman. [Colloq.] Swift.
[1913 Webster]

Tar, v. t. [imp. & p. p. Tarred (?); p. pr. & vb. n. Tarring.] To smear with tar, or as with tar; as, to tar ropes; to tar cloth.
[1913 Webster]

To tar and feather a person. See under Feather, v. t.
[1913 Webster]