Merriam-Webster's Collegiate® Dictionary, 11th Edition
GASH
I. noun
Date: 1548
a deep long cut in flesh, a deep narrow depression or cut ,
II. verb
Etymology: alteration of Middle English garsen, from Anglo-French garser to nip, scratch, from Vulgar Latin *charissare, from Greek charassein to scratch, engrave
Date: 1566
transitive verb to make a gash in, intransitive verb to make a gash ; cut ,
III. adjective
Etymology: origin unknown
Date: 1706
knowing , witty , well-dressed ; trim