LATIN DICTIONARYLexicon Latīnum
conjunction

nēdum

nēdum
Classical[ˈneː.dũː]Ecclesiastical[ˈnɛː.dum]

Meaning

  1. by no means, much less, not to speak of
  2. not to say, much more
  3. let alone
    aegre inermem tantam multitudinem, nedum armatam, sustineri possewe could hardly resist an unarmed crowd, let alone an armed one

Latīnē defined in Latin in our graded readers

nē-dum,
I. conj. (lit. while not), by no means, much less, still less, not to speak of (class.), used to indicate that whereas a certain thing is not, another thing can still less be.
A. With a preceding negation: satrapes si siet Amator, numquam sufferre ejus sumptus queat: Nedum tu possis, Ter. Heaut. 3, 1, 43: optimis temporibus nec P. Popillius, nec Q. Metellus vim tribuniciam sustinere potuerunt, nedum his temporibus sine vestrā sapientiā salvi esse possimus, Cic. Clu. 35, 95; id. Planc. 37, 90: nulla simulacra urbibus suis, nedum templis, sinunt, Tac. H. 5, 5: ne voce quidem incommoda, nedum ut ulla vis fieret, Liv. 3, 14 fin.—With vix or aegre in the place of the preceding negative: vix in ipsis tectis et oppidis frigus infirmā valetudine vitatur: nedum in mari, Cic. Fam. 16, 8, 2; id. Agr. 2, 35, 97: puerum vixdum libertatem, nedum dominationem modice laturum, Liv. 24, 4, 1: et aegre inermem tantam multitudinem, nedum armatam, sustineri, Liv. 6, 7, 3.—
B. Without a preceding negation, which, however, lies in the thought expressed: erat enim multo domicilium hujus urbis aptius humanitati tuae, quam tota Peloponnesus, nedum Patrae, Cic. Fam. 7, 28, 1: quippe secundae res sapientium animos fatigant: nedum illi corruptis moribus victoriae temperarent, Sall. C. 11, 8: Tac. A. 13, 20.—
II. Transf. (post-Aug.), affirmatively, not to say, much more: adulationes etiam victis Macedonibus graves, nedum victoribus, much more should they prove victors, Liv. 9, 18, 4: Quintius, quem armorum etiam pro patriā satietas teneret, nedum adversus patriam, id. 7, 40; 45, 29; 26, 26: satis mihi jam videbaris animi habere, etiam adversus solida mala, nedum ad istas umbras malorum, quibus, etc., Sen. Ep. 99, 3; Quint. 12, 1, 39: ornamenta etiam legioni, nedum militi, satis multa, Val. Max. 3, 2, 26.—So, by transposition, beginning the sentence (very rare): nedum hominum humilium, sed etiam amplissimorum virorum, not to speak of, I need not say, Balb. et Opp. ap. Cic. Att. 9, 7, A, 1.

Origins

From nē + dum.

Quick answers

What does nēdum mean in Latin?
nēdum, a conjunction, means “by no means, much less, not to speak of; not to say, much more; let alone”.
How do you pronounce nēdum?
In classical Latin, [ˈneː.dũː]; in ecclesiastical (church) Latin, [ˈnɛː.dum].