-aticus

Derived from -ātus (“-ate”, “-like”) +‎ -icus (derivational suffix), occurring in some original cases and later freely extended. Not to be confused with the ending -aticus (note the short /a/) found in various borrowings from Greek (cf. aenigmaticus, grammaticus).

• (Classical Latin) IPA^(key): /ˈaː.ti.kus/, [ˈäːt̪ɪkʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈa.ti.kus/, [ˈäːt̪ikus]

-āticus (feminine -ātica, neuter -āticum); first/second-declension suffix

1. Used to form adjectives indicating a relation to the root noun or actions related to it.

   ‎umbra (“shadow”, “shade”) + ‎-aticus → ‎umbrāticus (“found in the shade”)

   ‎via (“road”, “path”) + ‎-aticus → ‎viāticus (“related to a journey or travel”)

First/second-declension adjective.

• -āticum

• Aromanian: -atic
• Galician: -ádego
• Italian: -atico
• → Portuguese: -ático
• Romanian: -atec, -atic
• Sicilian: -aju, -aggiu, -àticu
• Spanish: -azgo