յանդուգն

Ačaṙean derives from յ- (y-) +‎ ան- (an-) +‎ *դուգն (*dugn), from Proto-Indo-European *dʰugʰ-, zero-grade of *dʰewgʰ- (“to be strong, have force”). The prefix ան- (an-) here is not the privative one. Among the cognates compare especially the family of English doughty.

յանդուգն • (yandugn)

1. bold, rash, headstrong
   • 5th century, Bible, 2 Timothy 3.4:

     մատնիչք, յանդգունք, ամբարհաւաճք, ցանկասէրք մանաւանդ քան աստուածասէրք

     matničʻkʻ, yandgunkʻ, ambarhawačkʻ, cʻankasērkʻ manawand kʻan astuacasērkʻ

     treacherous, rash, conceited, lovers of pleasure rather than lovers of God

յանդուգն • (yandugn)

1. boldly, rashly

• Armenian: հանդուգն (handugn)

• Awetikʻean, G., Siwrmēlean, X., Awgerean, M. (1837) “յանդուգն”, in Nor baṙgirkʻ haykazean lezui [New Dictionary of the Armenian Language] (in Old Armenian), volume II, Venice: S. Lazarus Armenian Academy, page 326a
• Ačaṙyan, Hračʻya (1944) “Haykakankʻ A [Armeniaca I]”, in HSSṘ GA Teġekagir hasarakakan gitutʻyunneri [Bulletin of the Academy of Sciences of the Armenian SSR: Social Sciences]‎ (in Armenian), number 5, page 28 of 25–30
• Ačaṙean, Hračʻeay (1977) “յանդուգն”, in Hayerēn armatakan baṙaran [Armenian Etymological Dictionary] (in Armenian), 2nd edition, a reprint of the original 1926–1935 seven-volume edition, volume III, Yerevan: University Press, page 382
• Ačaṙean, Hračʻeay (1979) “Haykakankʻ (Armeniaca)”, in Hayerēn armatakan baṙaran [Armenian Etymological Dictionary] (in Armenian), 2nd edition, volume IV, Yerevan: University Press, pages 627–628
• Petrosean, Matatʻeay (1879) “յանդուգն”, in Nor Baṙagirkʻ Hay-Angliarēn [New Dictionary Armenian–English], Venice: S. Lazarus Armenian Academy, page 126a
• Walde, Alois (1930) Julius Pokorny, editor, Vergleichendes Wörterbuch der indogermanischen Sprachen (in German), volume I, Berlin: de Gruyter, page 847