Language

Language in Our Stars has developed far since man first set foot on an FTL-capable ship. In the local region, most city-worlds speak a unified language, but the variety across the entire region is large.

Common
By far the most common spoken language in the local region, "common" (also known as Tôri) finds its origins on Tôr, and from there spread to many planets that were settled in its wake. Even after the evacuation of Tôr, it continues to dominate (in various dialects) across the region, and even as a lingua franca on planets that speak other languages entirely. Common dialects are Taranosan, Kergethi, and Mindian.

Common is mostly descendant from the germanic languages of Earth, but has taken in words and grammar from other language groups. Local dialectal variation also adds to this.

Nehimi
The predominant language of Nehim has been present since the planet was first settled. Though Common continues to dominate in high circles, Nehimi has become something of a secondary lingua franca on some of the more important Covenant planets.

Nehimi is mostly descendant from the slavic languages of Earth, but with noticeable germanic influence from its exposure to Common.

Seigneri
On Seignet-Kar, a multitude of old tongues (see below) are spoken due to the planets historical circumstances. However, the main language and "lingua franca" is that of the largest group to settle there, being descendants of asian peoples of Earth. Pretty much everyone on Seignet-Kar are bilingual, knowing their own local language as well as Seigneri.

Seigneri is mostly descendant of various chinese languages, with influence from other major asian languages.

Old tongues
Many rural worlds were not settled from Tôr, but rather directly from greater space. These settlers came from all kinds of backgrounds, some even from Earth, and thus speak a myriad of different languages that have been left alone to grow and change over time in the frontier of space. These "old tongues" are very diverse and far removed from both Common and Nehimi, and is often only spoken on one planet only.