liar

Meanings

1. 1
   noun

   Someone who tells a lie; especially, a person who frequently lies.

   He simply said, "We know, the Big Satan is a big liar."

2. 2
   noun

   A swabber responsible for cleaning the outside parts of the ship rather than the cabins, a role traditionally assigned to a person caught telling a lie the previous week.

   The Swabber is to keep the Cabbins, and all the Rooms of the Ship clean within board, and the Liar to do the like without board. The Liar holds his Place but for a week; and he that is first taken with a Lie upon a Monday morning, […] for that week he is under the Swabber, and meddles not with making clean the Ship within board, but without.

3. 3
   noun

   a person who has lied or who lies repeatedly

Etymology

Inherited from Middle English lier, liere, lyere, liȝer, lieȝer, legher, from Old English lēgere, lēogere (“liar, false witness, hypocrite”), from Proto-West Germanic *leugārī, from Proto-Germanic *leugārijaz (“liar”), from *leuganą (“to lie”) + *-ārijaz, equivalent to lie + -ar. More at lie.