ABSTRACT
Linguistics, that is, the Science of Language, which is also often called Philology, has two branches: Descriptive Linguistics and Historical Linguistics. Similar influencing of a sound by a neighbouring one is seen in what is called umlaut, which is due to the anticipation of the articulation of a vowel during the production of the preceding one. The fact that Historical Linguistics is defined as All consequences arising from the two axioms, has an important corollary, namely, that anything that cannot be derived from them must, linguistically, be nonsense. Similar influencing of a sound by a neighbouring one is seen in what is called umlaut, which is due to the anticipation of the articulation of a vowel during the production of the preceding one. In the case of French, Spanish and Latin, all three members of the family are present, but, in the case of most families of related languages, we are not so fortunate.
