From Middle English mo, from Old English mā, from Proto-Germanic *maiz, from a comparative form of Proto-Indo-European *meh₂-. Cognate with Swedish mer, Danish mer; and with Irish mó, Albanian më. See also more, most.
Meanings
(archaic, dialectal, not-comparable) Greater in amount, quantity, or number (of discrete objects, as opposed to more, which was applied to substances)
Nether durste eny man from that daye forth axe hym eny moo questions. 1526, [William Tyndale, transl.], The Newe Testamẽt […] (Tyndale Bible), [Worms, Germany: Peter Schöffer], →OCLC, Matthew xxij:
With that ran there a route of ratones at ones,
And smale mys myd hem, mo then a thousande c. 1380, William Langland, Piers Plowman:
From Middle English mo, from Old English mā, from Proto-Germanic *maiz, from a comparative form of Proto-Indo-European *meh₂-. Cognate with Swedish mer, Danish mer; and with Irish mó, Albanian më. See also more, most.
Meanings
(not-comparable, obsolete) To a greater degree.
When he had ſaied no: what (ſaid Ariſtippus) is it ſhame to ſaile in a Shippe, that hath afoꝛetymes caried a great nomber mo: […] 1564 February, Erasmus, “The Saiynges of Aristippus”, in Nicolas Udall [i.e., Nicholas Udall], transl., Apophthegmes, that is to Saie, Prompte, Quicke, Wittie and Sentẽcious Saiynges, […], London: […] Ihon Kingston, →OCLC, book I, folio 43, verso, paragraph 42:
I guess this mean mo money, mo problems for you? 1997, “Mo Money Mo Problems”, in Life After Death, performed by The Notorious B.I.G. ft. Ma$e and Diddy:
The Idaho prison is full of cho-mos (child molesters), mos (molesters), and all types of sexual predators that have engaged in some type of abnormal sexual acts. 2018, James Kühnel, Carceration State: