LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

archetypus

archetypus (feminine archetypa, neuter archetypum)
Classical[arˈkʰɛ.ty.pʊs]Ecclesiastical[arˈkɛː.ti.pus]

Meaning

  1. adjectivearchetypical, original
    Hic illi archetypus a creatore impressus est.Here this original (pattern) was impressed by the creator.1611, Johannes Kepler, Strena seu De Niva Sexangula, page 10:

Declension

singular
formmasculinefeminineneuter
nominativearchetypusarchetypaarchetypum
genitivearchetypīarchetypaearchetypī
dativearchetypōarchetypaearchetypō
accusativearchetypumarchetypamarchetypum
ablativearchetypōarchetypāarchetypō
vocativearchetypearchetypaarchetypum
plural
formmasculinefeminineneuter
nominativearchetypīarchetypaearchetypa
genitivearchetypōrumarchetypārumarchetypōrum
dativearchetypīsarchetypīsarchetypīs
accusativearchetypōsarchetypāsarchetypa
ablativearchetypīsarchetypīsarchetypīs
vocativearchetypīarchetypaearchetypa

archĕtўpus, a, um, adj., = ἀρχέτυπος,
I. that was first made, original (very rare): archetypos servare Cleanthas, i. e. the original statues of Cleanthes, Juv. 2, 7. So Martial calls the original MSS. of his epigrams, archetypae nugae, 7, 11, and in jest, friends that cost nothing, archetypi amici, 12, 69.—Hence, subst.: archĕtў-pum, i, n., an original, Varr. R. R. 3, 5, 8; so Plin. Ep. 5, 10; Macr. S. 7, 14.

Origins

From Ancient Greek ἀρχέτυπος (arkhétupos, “first-moulded”), from ἀρχή (arkhḗ, “first, origin”) + τύπος (túpos, “sort, type, press”).

Quick answers

What does archetypus mean in Latin?
archetypus, a adjective, means “archetypical, original”.
How do you pronounce archetypus?
In classical Latin, [arˈkʰɛ.ty.pʊs]; in ecclesiastical (church) Latin, [arˈkɛː.ti.pus].