lying

Etymology 1

lie (“to rest in a horizontal position”) + -ing.

verb

1. present participle and gerund of lie (“to rest in a horizontal position”)
   Without shutting herself up from her family ... or lying awake the whole night to indulge meditation, Elinor found every day afforded her leisure enough to think of Edward. 1811, Jane Austen, Sense and Sensibility 19

noun

1. The act of one who lies, or keeps low to the ground.
   1854, Saint Augustine, Expositions on the Book of Psalms, Psalm LXIV, translated by Philip Schaff et al. But whom could the lyings in wait of the human heart escape?

Etymology 2

lie (“to intentionally give false information”) + -ing.

verb

1. present participle and gerund of lie (“to intentionally give false information”)

noun

1. An act of telling a lie or falsehood.

adj

1. Tending to tell lies, untruthful, mendacious
   “God, how you lie, skinny! You’re about the lyingest woman I’ve ever met. I’ll be damned if I’ll keep on asking questions when it’s plain as day you’re not about to give out any answers. 1998, Charlotte Vale Allen, Mixed Emotions, Island Nation Press LLC, page 178

Etymology 3

lye. (a chemical liquid)

verb

1. simple past and past participle of lye