אִישֹׁון‎ (ʼîyshôwn|ee-shone'|noun|masculine|pupil)
[Heb] אִישֹׁון‎, אֱשׁוּן‎ ETCBC: אִישֹׁון‎ (subs|pupil of eye), אֱשׁוּן‎ (subs|approach) OSHL: a.da.ae TWOT: 83b GK: H413, H854
Derivation: diminutive from אִישׁ‎;
Strong's: the little man of the eye; the pupil or ball; hence, the middle (of night)
KJV: apple (of the eye), black, obscure.