x1 reflects Turkish/[Turkic] culture/nationality/language in aspect x2.
Synonymous exactly with the proposed cultural gismu turko, but more closely reflects native Turkish phonetics. (The front rounded vowel [y], found in the source word, Türkçe, is an allophone of Lojban's /i/) Alternate form tirkice. See also andolu 'Anatolian', gugdrtirki 'Turkey', kulnrtirki 'Turkish', bangrtirki, among others.