English
fattism
From fat + -ism (by analogy with racism, sexism, etc.).
Formed from fat + -ism
Proto-West Germanic *fait
Proto-West Germanic *faitijan ‘to make fat’
Proto-West Germanic *faitid ‘fatted’
Old English fǣtt ‘fatted’
Middle English fat ‘fattened’
English fat
Today it means
noun Discrimination on the grounds of fatness.
Language periods are conventional ranges, not dates for this word.
Etymograph / fattism