What is the meaning of Mu-?

Alternative form of mo-

you plural (used for conjugating verbs to the subjective or nominative case of the personal pronoun)

second person singular nominative proclitic

forms causative verbs from verbs

him, her, it; class 1 object concord.

Class 1 noun prefix.

him, her, it; class 1 object concord.

him, her, it; class 3 object concord.

Class 3 noun prefix.

you, second-person plural subject concord.

Augmentless form of umu- (class 1 or 3 noun prefix)

class 1 or 3 concord prefix for adjectives

him, her, it; class 1 object concord.

heat, fire, emotion

relating to a short object in the air

him, her, it; class 1 object concord.

you, you all; 2nd person plural subject concord

Class 1 noun prefix.

Class 3 noun prefix.

m class(I) noun prefix and adjective agreement prefix used before /u/ and /w/

m class(III) noun prefix and adjective agreement prefix used before /u/, /w/, and occasionally /h/

you, 2nd person plural subject concord used before /u/ and /w/

verb-initial form of -mu- (her, him; 3rd person singular (m class(I)) object concord used before /u/ and /w/)

therein, mu class(XVIII) subject concord used before /u/ and /w/

Class 1 noun prefix.

Class 3 noun prefix.

Class 1 noun prefix.

Class 3 noun prefix.

Class 1 simple noun prefix.

him, her, it; class 1 object concord.

Class 3 simple noun prefix.

Source: wiktionary.org