What does smaragdachātēs mean in Latin?

smaragdachātēs, a noun, means “emerald-agate”.

What is the genitive of smaragdachātēs?

The genitive singular is smaragdachātae. smaragdachātēs is masculine, first declension.

In classical Latin, [sma.raɡ.daˈkʰaː.teːs]; in ecclesiastical (church) Latin, [zma.raɡ.daˈkaː.tes].

noun · masculinefirst declension

smaragdachātēs m (genitive smaragdachātae)

Classical[sma.raɡ.daˈkʰaː.teːs]Ecclesiastical[zma.raɡ.daˈkaː.tes]

emerald-agate
Achates in magna fuit auctoritate, nunc in nulla est, reperta primum in Sicilia iuxta flumen eiusdem nominis, postea plurimis in terris, excellens3 amplitudine, numerosa varietatibus, quae mutant4 cognomina eius. vocatur enim iaspachates, cerachates, smaragdachates, haemachates, leucachates, dendrachates, quae velut arbusculis insignis est, antachates23 CE – 79 CE, Plinius Maior, Natural history 37.139

declension
form	singular	plural
nominative	smaragdachātēs	smaragdachātae zmaragdachātae
genitive	smaragdachātae zmaragdachātae	smaragdachātārum zmaragdachātārum
dative	smaragdachātae zmaragdachātae	smaragdachātīs zmaragdachātīs
accusative	smaragdachātēn zmaragdachātēn	smaragdachātās zmaragdachātās
ablative	smaragdachātē zmaragdachātē	smaragdachātīs zmaragdachātīs
vocative	smaragdachātē zmaragdachātē	smaragdachātae zmaragdachātae

From Ancient Greek σμαραγδαχάτης (smaragdakhátēs), from σμάραγδος (smáragdos), ultimately from Semitic.