I. |in(ˌ)dō+ adjective
Usage: usually capitalized I&E
Etymology: Greek ind-, indo- India, of or connected with India + English european — more at ind-
: of, relating to, characteristic of, or constituting the Indo-European languages
II. noun
Usage: capitalized I&E
1.
a. : the Indo-European languages
b. : the unrecorded prehistoric language from which the Indo-European languages are descended
2.
a. : a speaker of Indo-European (sense 1b)
b. : a member of a people whose original tongue is one of the Indo-European languages
3. : one who is a native or inhabitant of a country of southeastern Asia and especially Indochina and who is of European or part-European origin or descent : eurasian