אֶשֶׁךְ (ʼeshekeh'-sheknoun|masculinetesticle)
[Heb] אֶשֶׁךְ ETCBC: אֶשֶׁךְ‎ (subs|testicle) OSHL: a.gd.ak TWOT: 177 GK: H863 Greek: ὄπισθεν
Derivation: from an unused root (probably meaning to bunch together);
Strong's: a testicle (as a lump)
KJV: stone.