In this article in-depth analysis and processing of dictionaries' corpora is presented, based on e-collections of them. Moreover special interest is given to the development of means and tools for the coupling of lexica to (speech or textual) linguistic corpora. The relative results are (a) the construction of solutions for language processing based on lexicons' prior information and infrastructure, as well as (b) the development of adequate models for fitting and representation of real, lexical or language, data. Applications of language processing relative to (a) metric measurements (b) distributions and (c) spectra are given. Analytical models, developed in order to fit real measurements in lexica, are constructed, with expansion to language processing. As an instance, the e-corpus of the Medieval Greek Language regarding the period 1100AD-1669AD [expanding from Middle Byzantine era to Late Byzantine period and then to Post-Byzantine years], based on the renowned dictionary of Prof.Kriaras, has been constructed. Elements and results of the aforementioned language processing are given. This kind of processing is performed for the first time regarding the Greek language.