Merriam-Webster's Collegiate® Dictionary, 11th Edition
BLOAT
I. adjective
Etymology: Middle English blout, blote soft, pliable, from Old Norse blautr soft, weak; akin to Old English blēat miserable
Date: 14th century
bloated , puffy,
II. verb
Date: 1677
transitive verb
1. to make turgid or swollen, to cause abdominal distension in, to fill to capacity or overflowing, intransitive verb swell ,
III. noun
Date: 1854
1. one that is bloated, unwarranted or excessive growth or enlargement , digestive disturbance of ruminant animals and especially cattle marked by accumulation of gas in one or more stomach compartments