Webster's Revised Unabridged Dictionary · 1913

Impatience

Impatience , noun

[Old English impacience, French impatience, from Latin impatientia.]

The quality of being impatient; lack of endurance of pain, suffering, opposition, or delay; eagerness for change, or for something expected; restlessness; chafing of spirit; fretfulness; passion; as, the impatience of a child or an invalid.
I then,... Out of my grief and my impatience, Answered neglectingly. — Shakespeare
With huge impatience he inly swelt More for great sorrow that he could not pass, Than for the burning torment which he felt. — Spenser