1567  ekzeteo  ek-zay-teh'-o

 from 1537 and 2212; to 
search out, i.e. 
(figuratively)investigate, 
crave, demand, (by Hebraism) 
worship:--en- (re-)quire, 
seek after (carefully, 
diligently).

 see GREEK for 1537

 see GREEK for 2212