Vitaee wrote:
???? First, why the seimhiu on chúig.
Same h as in dhá (two) and cheithre (four)
Vitaee wrote:
Second, how typical is it to say "15 years and two twenties" like this,
Very typical.
It has been the normal way for centuries - before Irish children started learning Irish (and maths) in school.
Normal also in other languages:
Berrogeita hamabost (Basque) = 2x20 + 15 = 55
Quatre-vingts-dix-neuf (French) = 4x20 + 19 = 99
Vitaee wrote:
and would anybody ever say something like "3 years and and 5 tens"?
Fifty three = "fif" (5) x "ty" (tens) + three (3)
Irish caoga doesn't mean anything else than "five tens" (deich is only a bit more disguised)