Both Uses of

rebuke
in
Othello, the Moor of Venice

But, I beseech you, If't be your pleasure and most wise consent,—As partly I find it is,—that your fair daughter, At this odd-even and dull watch o' the night, Transported with no worse nor better guard But with a knave of common hire, a gondolier, To the gross clasps of a lascivious Moor,—If this be known to you, and your allowance, We then have done you bold and saucy wrongs; But if you know not this, my manners tell me We have your wrong rebuke.†
Scene 1.1

rebuke = criticize severely; or such criticism

If I once stir, Or do but lift this arm, the best of you Shall sink in my rebuke.†
Scene 2.3 *

Definitions:

(1) (rebuke)
criticize severely; or such criticism
(2) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

In archaic literature, you may see rebuke used in a sense of "to check" or "repress."