3915  layil  lah'-yil

 or (Isa. 21:11) leyl {lale}; 
also laylah {lah'- yel-aw}; 
from the same as 3883; 
properly, a twist (away of 
the light), i.e. night; 
figuratively, adversity:--
((mid-))night (season).

 see HEBREW for 03883