To fall asleep
Example: They fall asleep quickly
Definition
"To fall asleep" means to begin the state of sleep, transitioning from being awake to being asleep. It describes the moment when someone loses consciousness and enters rest, often naturally and without effort, as in "They fall asleep quickly."
Etymology
The phrase "to fall asleep" combines the verb "fall," from Old English 'feallan,' meaning to descend or drop, with "asleep," which comes from the Old English 'on slæpe,' meaning in sleep. Together, it vividly describes the act of descending into the state of sleep.