x1 reflects Caucasian culture/politics/language(s)/geography in aspect x2.
NOT to be used in the peculiarly North American sense of 'White' as a racial classifier; for that, see "kapli". Alternately kafkazo. See also nanrkafkaso/transkafkaso 'Transcaucasian', rusko 'Russian', softo 'Soviet', noxtino/kulnrnoxtci 'Chechen', kartuli 'Georgian', xai'otso 'Armenian', zarbaija 'Azerbaijani/Azeri', andolu 'Anatolian', tirkice/tirkece 'Turkish'.