drowsihoodn.
Etymology: < drowsy adj. + -hood suffix.
the world > physical sensation > sleeping and waking > sleep > drowsiness > [noun] > state of being drowsy
1867 H. W. Longfellow tr. Dante xxxii. 69 He may, who well can picture drowsihood.
This entry has not yet been fully updated (first published 1897; most recently modified version published online March 2018).