from The Century Dictionary and Cyclopedia
- n. Perfidiousness; treachery.
Sorry, no etymologies found.
Of her treachery and false-heartedness in doing what she had done in the way she had done it, he had no time to take account.
"Not Sir Oliver Tressilian, came the answer, but Sakr-el-Bahr, the scourge of the sea, the terror of Christendom, the desperate corsair your lies, cupidity, and false-heartedness have fashioned out of a sometime Cornish gentleman."
So dominated by insincerity and false-heartedness is he that he is compelled to be a pretender whether he will or not.
Regardless of the difficulties which often cause the minister to be burdened, emanating from the pastoral work, the attendance of many kinds of meetings, the worldly-mindedness of believers, the false-heartedness of brethren, the care of loved ones, besides his studies, yet none of these things moved him.
A cold chill came over him, and the image of pretty Ino rose up before him -- Ino, who had trusted in his love; and to whom, of all others, he had given cause to accuse him of false-heartedness.
My soul was stirred in me, and maddened to desperation, to think that we had placed our lives in such imminent peril, through the persuasions of such false-heartedness, and now told to go back home to our masters!
The Narrative of James Roberts, a Soldier Under Gen. Washington in the Revolutionary War, and Under Gen. Jackson at the Battle of New Orleans, in the War of 1812: "a Battle Which Cost Me a Limb, Some Blood, and Almost My Life." viii, 9-32 p.
He charges him with wickedness and false-heartedness, and this article of his charge was utterly groundless and unjust.