Etymology
Cerithades (ˈsəri-theɪdiːz or "seree-they-deez") means 'star people' in the Thade language, a fitting planet name for a people that emerged from the ashes of a war-torn era. It's a common misconception that "cerithades" is a derivative of "Cerillium"; the two words share nothing in common.
Cerillium (ˈsər-il-(l)-yəm or ser-ill-ee-um) derives from Cer (logic) + (e)ill (sound/intact). The suffix -ium transforms the word into a noun.
The standard way to refer to a citizen of Cerillium is as a "Cerian" (ser-ean). The suffix -ian transforms the word into an adjective to denote "a follower of logic".
Thade (they'd) can be translated into "a collection of something" or "all those gathered". Thades is an antiquated term that is still interchangeable although it is typically used to denote "something which belongs to all those gathered" rather than a plural form. The plural of Thade is Thade. The standard way to refer to the genus is "Thade" followed by each species broken down by caste or species name if necessary.
Cerillium (ˈsər-il-(l)-yəm or ser-ill-ee-um) derives from Cer (logic) + (e)ill (sound/intact). The suffix -ium transforms the word into a noun.
The standard way to refer to a citizen of Cerillium is as a "Cerian" (ser-ean). The suffix -ian transforms the word into an adjective to denote "a follower of logic".
Thade (they'd) can be translated into "a collection of something" or "all those gathered". Thades is an antiquated term that is still interchangeable although it is typically used to denote "something which belongs to all those gathered" rather than a plural form. The plural of Thade is Thade. The standard way to refer to the genus is "Thade" followed by each species broken down by caste or species name if necessary.