3784  opheilo   of-i'-lo, or 
(in certain tenses), its 
prolonged form       opheileo  
of-i-leh'-o

 probably from the base of 
3786 (through the idea of 
accruing); to owe 
(pecuniarily); figuratively, 
to be under obligation 
(ought, must, should); 
morally, to fail in duty:--
behove, be bound, (be) debt(-
or), (be) due(-ty), be guilty 
(indebted), (must) need(-s), 
ought, owe, should. See also 
3785.

 see GREEK for 3786

 see GREEK for 3785