The most common politeness distinction is wɔ (informal) vs. use (formal). The 2nd person plural pronoun udzo is also used for respectful singular address in some cases, which is more formal than use.
Source: Clements 1996: 103, 106, 108
Source: Clements 1996: 103, 106, 108
Source: Clements 1996: 103, 106, 108