-atory

-atory

suff.1. a. Of or relating to: perspiratory.b. Tending to: amendatory.2. One that is connected with: reformatory.
[From Latin -ātōrius and -ātōrium, both from -ātor, -ator.]

-atory

suffix forming adjectives of, relating to, characterized by, or serving to: circulatory; exploratory; migratory; explanatory. [from Latin -ātōrius; see -ate1, -ory2]

-atory

a combination of -ate1 and -ory1 or -ory2, used infrequently as an independent suffix with the same senses as -ory1 and -ory2: affirmatory; observatory. [< Latin -ātōrius]