Webster's Revised Unabridged Dictionary · 1913

packet

packet (pak"et) , noun

[French paquet, dim. from Late Latin paccus, from the same source as English pack. See Pack.]

1.
A small pack or package; a little bundle or parcel; as, a packet of letters. — Shakespeare
2.
Originally, a vessel employed by government to convey dispatches or mails; hence, a vessel employed in conveying dispatches, mails, passengers, and goods, and having fixed days of sailing; a mail boat.
Collocations (3)
Packet boat or Packet ship or Packet vessel , See Packet, n., 2.
Packet day , the day for mailing letters to go by packet; or the sailing day.
Packet note or Packet post , See under Paper.

Packet , transitive verb

1.
To make up into a packet or bundle.
2.
To send in a packet or dispatch vessel.
Her husband Was packeted to France. — Ford

Packet , intransitive verb

To ply with a packet or dispatch boat.