Tail \Tail\, v. i.

1. (Arch.) To hold by the end; -- said of a timber when it rests upon a wall or other support; -- with in or into.

2. (Naut.) To swing with the stern in a certain direction; -- said of a vessel at anchor; as, this vessel tails down stream.

Tail on. (Naut.) See Tally on, under Tally.

Source: Webster's Revised Unabridged Dictionary (1913)