perhaps from ops, "sight," denotes "a hole, an opening," such as a fissure in a rock, Hebrews 11:38 . In James 3:11 , the RV has "opening," of the orifice of a fountain (AV, "place"). See PLACE.
"a grotto, cavern, den" (Lat., spelunca), "cave," John 11:38 , is said of the grave of Lazarus; in the RV in Hebrews 11:38; Revelation 6:15 (AV, "dens"); in the Lord's rebuke concerning the defilement of the Temple, Matthew 21:13; Mark 11:17; Luke 19:46 , "den" is used.