Strong's #5942: `illiy (pronounced il-lee')
 from 5927; high; i.e. comparative:--upper.
Brown-Driver-Briggs Hebrew Lexicon:
 ּ 
  ‛illı̂y 
 
 1) upper
 
  Part of Speech: adjective
Relation: from H5927
Usage:
This word is used 2 times:
Joshua 15:19: "of water. And he gave her  the upper springs, and the nether springs."
Judges 1:15: "And Caleb gave her  the upper springs and the nether springs."