Autocube3.
In the original mother tongue of Babel autocube is spelt: auduacubuc.
audua = reflective self
cub = square
buc = block
So that is the definition of an autocube: a self reflecting block of squares.
bab = the reflective male
mam = the reflective female
So the original alphabet blocks which make up the tower of Babel are
mam made.
buc 1 = abacad ab raj
buc 2 = ebeced eb rex
buc 3 = ubucud ub rul
And from the carbon sheet of the tower of Babel comes human language.