A complete study of Old Armenian (Grabar) vocabulary. The analysis of functional peculiarities of native and loan words; the research of language relations between Old Armenian and Kharabakh dialect; etymology of about several dozens of words; a dictionary of Old Armenian (Grabar) including 5500 words not testified in "Nor Haikazian Dictionary"

Graduated from YSU (1967). Doctor of Philology (1968). Prof. (2008), corr. member (2010)

The director of the Institute of Linguistics of NAS RA (from 2006)

Junior research worker of the Institute of Linguistics of NAS RA (1971-1977), Senior research worker (1977-1986), Head of the Department of Armenian Concordance (1986-1991), Deputy Director (1995-2005), Director of the Institute of Linguistics of NAS RA (from 2006)