The Source Book (1)

European speakers had a term to refer to themselves as 'Proto-Indo-
Europeans'.[28][29]

 Early PIE: * h₂erós ,[30]

o Anatolian: * ʔor-o- , 'peer, freeman',[31]

 Hittite: arā- , 'comrade, peer, companion,

friend'; arāwa- , 'free from'; arawan(n)i- , 'free, freeman

(not being slave)'; natta ara , 'not proper to the

community',[23][28][31]

 Lycian: arus- , 'citizens'; arawa - , 'freedom',[28][31]

o Late PIE: * h₂eryós ,[30]

 Indo-Iranian: * arya- , 'Aryan, Indo-Iranian',[20][30]

 Old Indo-Aryan: árya- , 'Aryan, faithful to the

Vedic religion'; aryá- , 'kind, favourable, true,

devoted'; arí- , 'faithful; devoted person, ±

kinsman';[20][30]

 Iranian: * arya- , 'Aryan, Iranian',[32]

 Avestan: airya - (pl. aire ), 'Aryan,

Iranian',[20][33][30]

 Old Persian: ariya- , 'Aryan, Iranian',[20][32][28]

 Celtic: * aryo- , 'freeman; noble'; or perhaps

from * prio- ('first > prominent, eminent'),[34][26][27]

 Gaulish: ario- , 'freeman, lord; foremost',[35][36]

 Old Irish: aire, 'freeman, chief; noble';[35][36]

 Germanic * arjaz , 'noble, distinguished, esteemed',[37]