hol'-o (kaph, nabhabh): "Hollow" is the translation of kaph, "hollow" (Ge 32:25,32, "the hollow of his thigh," the hip-pan or socket, over the sciatic nerve); of nabhabh, "to be hollow" (Ex 27:8; 38:7; Jer 52:21); of sho`-al, "hollow" (Isa 40:12, "Who hath measured the waters in the hollow of his hand?" (in handfuls; compare 1Ki 20:10; Eze 13:19)); of makhtesh, "a mortar," "socket of a tooth" (from its shape) (Jg 15:19, "God clave an (the Revised Version (British and American) "the") hollow place that is in Lehi"); of sheqa`aruroth, probably from qa`ar, "to sink" (Le 14:37, "the walls of the house with hollow strakes," so the English Revised Version, the American Standard Revised Version "hollow streaks," depressions); of koilotes (The Wisdom of Solomon 17:19, "the hollow mountains," the Revised Version (British and American) "hollows of the mountains"); of koiloma (2 Macc 1:19, "hollow place of a pit," the Revised Version (British and American) "hollow of a well"); of antrodes (2 Macc 2:5, "a hollow cave," the Revised Version (British and American) "a chamber in the rock," margin (Greek) "a cavernous chamber").
⇒See the definition of hollow in the KJV Dictionary
W. L. Walker