on (also upon) right: correctly, accurately; truthfully. Cf. aright, adv. Obsolete.

In accordance with truth or fact; correctly, accurately; genuinely. Now U.S. slang (chiefly in African-American use, sometimes with reduced force as…

In a right way or manner; rightly, justly, correctly, properly.

Properly, correctly; with reason. Formerly also: †genuinely; in truth (obsolete).

With accuracy; precisely, exactly; without error or defect.

With close attention, closely, minutely. Now rare.

Of knowledge or statement: Accurately, with strict correctness.

colloquial. Properly, in correct form.