The article dwells on comparative analysis of morphological peculiarities and word-building potentiality of the prefix ham- in Tajik literary language referring to the 18th and 20th centuries. The factological material is the historical works and in order to conduct the comparative analysis beset with the topic under considerdation, the author used “Tukhfat-ul-khoni” (18th century), “The History of Manghit Emirs of Bukhara. Muqanna’s Rebellion”, “The History of Intellectual Revolution in Bukhara” (20th century).
It is concluded that the adduced analysis beset with lexical possibilities of the noun forming prefix ham- in the language of the period in question shows that the range of connection of these lexical elements with different lexical units is more widely-sued, they could be not only nouns, but parts of speech, especially adjectives, infinitive and verbs are added to create new derived words either.