ETYMOLOGY
from Latin mundus (world) + –cidious from –cida (killer)
EXAMPLE
“…Since I knew what to feare, my timerous heart hath dreaded three things: a blazing starre appearing in the aire: a State Comet, I mean a favourite rising in a Kingdome, a new Opinion spreading in Religion: these are Exorbitancies: which is a formidable word: a vacuum and an exorbitancy, are mundicidious evils…”
From: The Simple Cobler of Aggawam in America
By Rev. Nathaniel Ward, 1647
Lexicophilia 