'uniform-toothed' is a modern English compound formed from 'uniform' + the past-participial/participial adjective 'toothed'. 'Uniform' comes from Latin 'uniformis' (from 'unus' = 'one' + 'forma' = 'form/shape'), and 'toothed' is derived from Old English 'tōþ' (tooth) with a past-participial/adjectival suffix.

'uniform' entered English via Latin 'uniformis' (through Medieval/Modern Latin and French influence) and became the English adjective 'uniform'; 'tooth' comes from Old English 'tōþ' (from Proto-Germanic *tanþs) and developed the adjectival form 'toothed' (meaning 'having teeth of a specified kind'). The compound 'uniform-toothed' is a descriptive formation in modern English combining these elements.

Initially each element carried its original sense ('uniform' = 'of one form', 'toothed' = 'having teeth'); combined as 'uniform-toothed' the meaning remains a literal descriptive term: 'having teeth all of the same shape.'