1: μελετάω
(Strong's #3191 — Verb — meletao — mel-et-ah'-o )

primarily, "to care for" (akin to melete, "care;" cp. melei, "it is a care"), denotes (a) "to attend to, practice," 1—Timothy 4:15 , RV, "be diligent in" (AV, "meditate upon"); to practice is the prevalent sense of the word, and the context is not against this significance in the RV rendering; some mss. have it in Mark 13:11; (b) "to ponder, imagine," Acts 4:25 . See IMAGINE.

2: προμελετάω
(Strong's #4304 — Verb — promeletao — prom-el-et-ah'-o )

"to premediate," is used in Luke 21:14 .

Mark 13:11