managerial (adj.)

1580s, "one who directs or controls," agent noun from manage. Specific sense of "one charged with conducting a house of business or public institution" is from 1705.

adjectival word-forming element, variant of -al (1) with connective -i-. From Latin -ialis, in which the -i- originally was from the stem of the word being attached but later came to be felt as connective.