"drowsey" is probably misspelled. Trying drowse instead Definition of drowse
drowse has definitions from the field of biology
1
[ verb ] sleep lightly or for a short period of time

Synonyms

doze snooze

2
[ verb ] be on the verge of sleeping

Examples

"The students were drowsing in the 8 AM class"

3
[ noun ] (biology) a light fitful sleep

Synonyms

doze

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