Old Testament Hebrew Lexical Dictionary
Strong's #3710 - כֵּף
1) rock, hollow of a rock
1247) pk (כפ KP) AC: Press CO: Palm AB: Tame: The pictograph k is a picture of the palm of the hand, the p is a picture of an open mouth. Combined these mean "palm open". The curved shape of the open palm. (eng: cap - as a bowl shaped covering; cuff - as at the palm)
Nf) pk (כפ KP) - Palm: Also the sole of the feet or other palm shaped object such as a spoon. KJV (193): hand, spoon, sole, palm, hollow, handful, apiece, branch, cloud - Strongs: H3709 (כַּף), H3710 (כֵּף)
Jeff Brenner, Ancient Hebrew Research Center Used by permission of the author.
כֵּף m. rock, only used in the pl. Jeremiah 4:29; Job 30:6. (Syr. and Ch. ܟܺܐܦܐܳ, כֵּיפָא; whence, in New Test. Κηφᾶς i.q. Πέτρος.)
the Second Week after Easter