fat
UK[fæt]US[fæt]
adj
having a lot of flesh on your body, especially too much
adj
thick or wide
n
a substance in many foods that is an important source of energy and also makes food taste better
n
a soft white substance under the skin of people and animals that stores energy and keeps them warm
Etymology
the word "fat" has a deep and ancient lineage, tracing back to the proto-indo-european root poid-, meaning "to abound, be fertile, swell." this root evolved into the proto-germanic faitaz, signifying "fatty, plump," which directly gave rise to the old english "fætt." the semantic core has remained remarkably consistent from its earliest origins, connecting the concept of swelling and abundance directly to the physical state of being fleshy or oily. its straightforward journey from a concrete descriptor of physical substance to its modern adjectival and nominal uses exemplifies the stability of certain core vocabulary within the english language.
Analysis
the word is a simplex form. it is a single, indivisible morpheme in modern english.
Examples
he's trying to reduce the fat in his diet.
the book was a fat volume of over a thousand pages.
trim the excess fat from the meat before cooking.