'aecidioform' originates from the Greek word 'aikidion,' where 'aiki-' meant 'point' or 'sharp' and '-idion' is a diminutive suffix.

'aikidion' transformed into the Latin word 'aecidium,' and eventually became the modern English word 'aecidioform' through scientific Latin.

Initially, it meant 'small point or sharp structure,' but over time it evolved into its current meaning of 'resembling an aecidium.'