Strong's G5501 — χείρων (adjective)
cheiron (khei'-rown) adj.
1. more evil or aggravated (physically, mentally or morally)
[irregular comparative of G2556, from an obsolete equivalent cheres (of uncertain derivation)]
KJV: sorer, worse 
Root(s): G2556 
Hebrew root: κακός
Occurrences: 11