gound
Mucus produced by the eyes during sleep.
uncountable
Typical terms invented to fill this vacuum include sleepies, eye-snot, and bed-boogers. The correct word, however, is gound. "Collin was never one to dillydally in the morning: by the time he had rubbed the gound out of his eyes he was usually on his third Manhattan."
Gummy matter in sore eyes.
uncountable
Where it comes from
From Middle English gounde, gownde, from Old English gund (“matter, pus, poison”), from Proto-West Germanic *gund, from Proto-Germanic *gundaz (“sore, boil”), from Proto-Indo-European *gʰendʰ- (“ulcer, sore, abscess, boil”). Cognate with Old High German gunt (“purulent matter”), dialectal Norwegian gund (“the scab of an ulcer”).
Adapted from the Wiktionary entry gound (CC BY-SA 4.0).