כַּו‎ (kav｜kav｜noun｜feminine｜window)
[Arc] כַּו‎, כַּוָּה‎ ETCBC: כַּוָּה‎ (subs｜window) OSHL: xk.ac.ac TWOT: ? GK: H10348 Greek: θυρίς
Derivation: (Aramaic) from a root corresponding to לַהַג‎ in the sense of piercing;
Strong's: a window (as a perforation)
KJV: window.