Extended Strong's Greek Lexicon (Abbott-Smith based)
to meditate/plot
Usage: μελετάω, -ῶ (μελέτη, care), [in LXX chiefly for הָגָה m ;] __1. with genitive, to care for (Hes.). __2. C. accusative to attend to, practise: 1Ti.4:15 (RV, be diligent in; cf. Souter in Exp., VIII, vi, 429, but see infr.). __3. to study, ponder: Act.4:25 (LXX) 1Ti.4:15 (AV, meditate on; cf. CGT, in l, but see supr.; cf. προ-μελετάω).† (AS)