integrity (n.) Look up integrity at Dictionary.com
c. 1400, "innocence, blamelessness; chastity, purity," from Old French integrité or directly from Latin integritatem (nominative integritas) "soundness, wholeness, completeness," figuratively "purity, correctness, blamelessness," from integer "whole" (see integer). Sense of "wholeness, perfect condition" is mid-15c.