one, um . . .

Number Systems of the World: lists of number-words from 0 to 100, ranked, somewhat arbitrarily, by “complexity”. (Cited by LanguageHat.) To me the most remarkable is Alamblak (#7) whose number-words are all compounded from the words for 1, 2, 5 and 20, thus 56 is yima hosfi tir hosfirpati rpat = twenties two, fives two-one, one.