The Machiguenga people are uncommonly inconsistent in applying this practice to individuals. The proto-Indo-Europeans are thought to have used a dithematic system of this practice. A taboo regarding this practice is well-documented among Aboriginal Australians, who may refrain from it directly after a death. By Arabic convention, a nasab (-5[1])of variable length may (10[1])be used (-5[1])when applying this concept, as can an (10[1])ism (“ISS-um”) and a kunya. In the wake of the Self-Respect movement, much (10[1])of the Tamil diaspora has altered its application of this practice to de-emphasize caste. Within different (-5[1])systems of this concept, the same function is served by the Kalenjin word “arap,” Welsh (10[2])“ap,” and Russian “-ovich” or “-ovna.” (10[1])For 10 points, give this practice, by (10[1])which people are designated by one or more words. (10[1])■END■ (10[6])