Merriam-Webster's Collegiate® Dictionary, 11th Edition
SLIGHT
I. adjective see: slick
Date: 14th century
1. having a slim or delicate build ; not stout or massive in body, lacking in strength or substance ; flimsy , frail , deficient in weight, solidity, or importance ; trivial , small of its kind or in amount , see: thin slightly adverb slightness noun
II. transitive verb
Date: 1586
to treat as slight or unimportant ; make light of, to treat with disdain or indifference , to perform or attend to carelessly and inadequately , see: neglect
III. noun
Date: 1701
an act or an instance of slighting, an instance of being slighted ; a humiliating discourtesy