The analysis of the Veda should start with those Mandalas that were completely in the name of a Single Sage and once the Subject matter of the Complete mandalas is known with certainty then this subject matter can be compared with the other passages or suktas credited to other sages, which are not complete, to assess the over all subject matter of the Veda. The language of the Veda is the Same Sanskrit as used in the conversation. But the connotation of the words in the Vedic Context will change.
Language has wide applications.
Every word of every language mean contextually different. There are certain Guide Lines to interpret, analyze, and understand the Rig Veda. They are, a. The whole Language of the Vedas is to be understood from the perspective of the Roots of the Words, and from the process of the word formation, b. If the Root structure of the word is not clear then the word should be split in two parts and for each part the root structure is to be derived to give the meaning to the word, c.