There is a vocabulary of oriental origin, the plant names that are sorted by the author, next to the word according to species (tree, grass, flowers) in Sulkhan-Saba Orbeliani’s "Georgian Vocabulary". As with other lexical units, Sulkhan-Saba points to the origin of different plants (Persian, Arabian, Tatar, not Georgian, other language, etc.), some are left without reference and the author considers them as a Georgian word. The aim of the work is to identify the names of Arab-Persian origin plants in Sulkhan-Saba Orbeliani’s "Georgian Vocabulary", to indicate their etymological origin and ways of settlement in Georgian language. This paper is the seventh part of our study. The names of plants beginning with the letters of the Georgian alphabet “t-gh”, which are confirmed by the Eastern, in particular, Arabic-Persian etymology. In this regard we will study Georgian-Eastern linguistic relations. All lexical items will be checked in the etymological dictionaries of the respective languages and dialects, we will determine and use the phonetic regularities that are bases of the phonetic conclusions of the vowels and consonants between the words of the unrelated languages.