'isodontia' originates from Greek, specifically the word 'isodóntia', where the prefix 'iso-' meant 'equal' and the root 'odous/odont-' meant 'tooth'.

'isodontia' was adopted into New/Scientific Latin from Greek 'isodóntia' and then used in modern scientific English both as a technical term for 'equal teeth' and as a genus name in entomology ('Isodontia').

Initially it meant 'equal teeth' in the literal Greek sense, but over time it has been used both for the anatomical/dental condition and as a taxonomic genus name for certain wasps.