proportional analogy

English

proportional analogy (plural proportional analogies)

analogy between four things, in which A is to B as C is to D, or A : B = C : D.
(linguistics) formation of a new word based on morphological parallelism of three existing words, rather than direct derivation. Examples:

drive	drove
dive	dove

chemistry	chemist
organic chemistry	organic chemist

flower	florist
artificial flower	artificial florist