'amygdalitis' originates from Greek, specifically the word 'amygdalē,' where 'amygdal-' meant 'almond' (referring to the shape of the tonsils) and '-itis' meant 'inflammation.'

'amygdalē' transformed into the Latin word 'amygdala,' and eventually became the modern English word 'amygdalitis' through medical terminology.

Initially, it meant 'inflammation of the almond-shaped tonsils,' and this meaning has largely remained the same in modern usage.