English
heightism
From height + -ism.
A compound of height + -ism
Proto-Indo-European *kewk- ‘to bend’
…
Proto-Germanic *hauhiþō
Proto-West Germanic *hauhiþu
Old English hīehþu ‘highness’
Middle English heighte
English height
Today it means
noun A prejudiced attitude about human height that often results in discrimination, based on the belief that unusually short or tall people are inferior and undesirable.
Language periods are conventional ranges, not dates for this word.
Etymograph / heightism