mistruth

As a noun mistruth

is untruth; falsehood.

As a verb mislead is

(literally) to lead astray, in a false direction.

As nouns the difference between mistruth and untruth

is that mistruth is untruth; falsehood while untruth is a lie or falsehood.

As nouns the difference between mistruth and lie

is that mistruth is untruth; falsehood while lie is the terrain and conditions surrounding the ball before it is struck.

As a verb lie is

to rest in a horizontal position on a surface.

As nouns the difference between falsehood and mistruth

is that falsehood is the property of being false while mistruth is untruth; falsehood.