Bible Greek and Hebrew Dictionaries combined for Word Studies
Genesis Chapter 1
keeping 3908 # paratithemi {par-at-ith'-ay-mee}; from 3844 and 5087; to place alongside, i.e. present (food, truth); by implication, to deposit (as a trust or for protection): -- allege, commend, commit (the {keeping} of), put forth, set before.
tower 0975 ## bachan {bakh'-an}; from 974 (in the sense of keeping a look-out); a watch-tower: -- {tower}.