Abstract
In this article we have proposed to present results of the research of the layer of autochthonous words from the Romanian language, namely the letter C (căciulă – ciucă). It is about research from the perspective of the linguistic geography of the substrate words căciulă, călbează/gălbează, căpuşă, cătun, ceafă, cioară, cioc, ciucă in the Romanian language spoken east of the Prut, according to the data provided by linguistic atlases (ALM, ALRR. Bas., ADCC/ОКДА), dialect texts, the dialectological archive/Dialectal dictionary, etc., elaborated by researchers from Chisinau.
The identification of native words from the Romanian-speaking area in the east of the Prut with those from the vocabulary of the Daco-Romanian dialects on the right of the Prut, but also with those from the southern dialects – Aromanian, Megleno-Romanian, Istro- Romanian – allow us to note some similarities regarding their character as preservers of old elements in the lexical field.