Obesity is the medical condition of being dangerously overweight. A clinical term, not a description of appearance.
Doctors define it by body mass index, though the measure is crude and treats muscle as fat, which is one reason it is argued about. It raises the risk of diabetes, heart disease and several cancers, which is why it is treated as a public health matter rather than a private one. The adjective is obese, and it is a medical word rather than an insult, though it is very often used as one.
1nounobesityThe medical condition of carrying dangerously excessive body fat.
“The report links obesity to a shortage of green space.”
Proto-Indo-European
*h₁ed-
Latin
obēsitās
French
obésité
English, today
obesity
Built from
From French obésité, from Latin obēsitās, from obēsus (“fat”). by surface analysis, obese + -ity.
Etymology from Wiktionary, CC BY-SA