The Danish language still has remains of this. 60 is 'tres', from three 20's. 80 is 'firs' from four 20's. The odd tens are even weirder, since they count upwards, so 50 is 'halftreds', which is half of the third 20; 70 is 'halffirs'; and 90 is 'halffems', four whole and a half of the fifth 20. But 100 is 'hundred', so 'fems' alone is never used. Also, for larger numbers, the digit order get weird: 123 is hundredogtreogtyve, one hundred and three and twenty.