What does dēdux mean in Latin?

dēdux, a adjective, means “derived, descended”.

How do you pronounce dēdux?

In classical Latin, [ˈdeː.dʊks]; in ecclesiastical (church) Latin, [ˈdɛː.duks].

adjectivethird-declension one-termination adjective

dēdux (genitive dēducis)

Classical[ˈdeː.dʊks]Ecclesiastical[ˈdɛː.duks]

one terminationderived, descended
nisi forte Gallia tua dedux Heliconisunless perchance your Gaul (is) descended/derived from HeliconSymmachus, Letters 8.69

singular
form	masculine	feminine	neuter
nominative	dēdux	dēdux	dēdux
genitive	dēducis	dēducis	dēducis
dative	dēducī	dēducī	dēducī
accusative	dēducem	dēducem	dēdux
ablative	dēducī dēduce	dēducī dēduce	dēducī dēduce
vocative	dēdux	dēdux	dēdux

plural
form	masculine	feminine	neuter
nominative	dēducēs	dēducēs	dēducia
genitive	dēducium	dēducium	dēducium
dative	dēducibus	dēducibus	dēducibus
accusative	dēducīs dēducēs	dēducīs dēducēs	dēducia
ablative	dēducibus	dēducibus	dēducibus
vocative	dēducēs	dēducēs	dēducia

dēdux, ŭcis, adj. id..

I. Derived, descended, Symm. Ep. 8, 68.—

II. = conditor, on a coin ap. Eckhel. IV. p. 347.

Apparently dēdūcō + -s; compare redux.