Abstract The author discusses etymology of the Armenian word ‘tapast’ ‘cover, carpet’ and ‘tapast’ ‘a kind of deadly pain, decease’, that generally are considered to be Iranian loanword or of unknown origin. We would like to indicate to the word ‘tapašpa’ in Hittite with meaning ‘a type of cloth or cover’ and tapaš- ‘fever, heat, an unknown decease’ that have no clear etymology in Hittite. We suppose that the Armenian words may have etymological connection with the Hittite ones as they have similar meaning, however Avestan tapasti- and Middle Persian (Pahlavi) tapasta- ‘carpet’ parallels cannot be ignored. As we see from semantic point of view there are three lexical parallels in Armenian, Hittite and Iranian with comparable sounding and ...