This paper offers a morphological analysis of the borrowed derivational suffix -όζος [ózos], used in both a number of Modern Greek (MGr) dialects and in Standard Modern Greek (SMGr). It draws on an extensive corpus to examine the suffix from both a synchronic and a diachronic perspective. Our diachronic analysis emphasizes the geographical distribution, the etymological provenance of the suffix, and the loan accommodation strategies employed in various MGr dialects, thus providing some interesting etymological findings regarding the lexical stock of Modern Greek (Standard and dialects). Our synchronic analysis focuses on the stem categories with which the suffix combines and accounts for the phonological, morphological, and syntactic constraints that function during the derivational process.