Definitions for "Lassitude"
A condition of the body, or mind, when its voluntary functions are performed with difficulty, and only by a strong exertion of the will; languor; debility; weariness.
Weakness, exhaustion
a state of comatose torpor (as found in sleeping sickness)
Keywords:  wearniness
Keywords:  tired, latin, late, comes, get
Lassitude comes from the Latin word for "tired," which also gives us "late" - as in "too tired to get there on time." See: TIRED.