Indo-European Language Family
There are three languages belonging to Baltic language group: Latvian, Lithuanian and Prussian. Prussian is already so called “dead” language, although many linguists and scientists in different countries are carrying out the revival of the Prussian language. Prussian is more archaical than Latvian and Lithuanian, and the Lithuanian language is the most resembling to Indo-European parent language. The Latvian language is more modern and not as conservative as Lithuanian.
The Celtic languages form the most westerly group of the Indo-European family of languages, all of which seem to descend from a common origin, or are at least characterized by a closely related system of phonetics and morphology, as well as by a common vocabulary and the same syntactical structure. The Celtic languages, which have been spoken by different branches of the Celtic peoples from prehistoric times to the present day, belong to the so called centum group of the Indo-Eouropean dialects (the centum group have preserved the Indo-European palatal consonants as occlusives).
The Celtic languages fall into 2 main groups: Goidelic (called today Gaelic) and British (also called Brythonic). This cleavage already appears on the earliest Celtic monuments.
There are three branches belonging to the Germanic language group. English, Dutch, German and Frisian belong to the West Germanic branch. Other Germanic branch include the East Germanic group of Gothic, Vandalic and Burgundian, all of which are extinct, and the North Germanic Group of Norwegian, Swedish, Danish and Icelandic. All Germanic languages in turn are members of the Indo-European group. The Germanic languages are distinguished from other Indo-European languages by a recessive accent, one which always accents the word on the first or root syllable, and by a systematic shift of certain Indo-European consonants. …