From Proto-Indo-European *mon- (“man”) or *men- (“to mind; to stay”). Alternatively, Kroonen favors the word splitting off from Proto-Indo-European *(dʰ)ǵʰmō, *(dʰ)ǵʰmon- (“human”) in the cases where the -m- wasn't syllabic (which otherwise gave *gum-, see *gumô); since the initial cluster would have been unpronounceable in Germanic, the result is a reduced *(-)man-.[1]
*mann- m
This noun was inflected as a consonant stem, but the daughter languages disagree on the form of the nominative singular. The Gothic form points to a nominative *man(n)ô, as does the rare Old English nominative manna. The north and west Germanic forms, on the other hand, indicate *mannz. Judging from Gothic evidence, the original compounding form was *mana(n)- with only a single -n-, as in 𐌼𐌰𐌽𐌰𐍃𐌴𐌸𐍃 (manasēþs, “mankind”); however, note also 𐌼𐌰𐌽𐌻𐌴𐌹𐌺𐌰 (manleika, “portrait”).
Several ideas have been proposed to explain the unusual morphology of this word, particularly the geminate -nn-. One proposal is that its stem was manwa- (wa-stem) or manu- (u-stem), where -nw- would have become -nn- through regular sound change in Germanic. This explains the relationship of the noun to cognates elsewhere in Indo-European, but crucially it does not explain the consonant stem inflection.
A more recent proposal is that the noun reflects a root man- to which n-stem endings have been added. These n-stem endings were not the usual type found in Germanic, but a rarer type that lacked a vowel between the root and the stem suffix in some of the forms. This is also seen in *uhsô (which has the stem *uhsn- in the plural), *arô (with *arn-), *berô (with *bern-) and Latin carō (with carn-). The stem without a vowel would have then been *man-n-, to which consonant stem endings would have been added, as n-stems were consonant stems in origin. If this is the case, it would explain the geminate -nn-, the consonant stem endings, and would also account for the n-stem nominative singular found in Gothic and Old English.
consonant stemDeclension of *mann- (consonant stem) | |||
---|---|---|---|
singular | plural | ||
nominative | *mann-, *manô, *mannô | *manniz | |
vocative | *mann | *manniz | |
accusative | *mannų | *mannunz | |
genitive | *manniz | *mannǫ̂ | |
dative | *manni | *mannumaz | |
instrumental | *mannē | *mannumiz |