Where does “kaloza” come from?

kaloza (Ido) comes from Ido -oza, from Latin -ōsus, from Old Latin -ōssus.

kaloza (Ido): callous, horny

Definitions

Step	Language	Word	Meaning
1	Ido	-oza	-ful -ous
2	Latin	-ōsus	—
3	Old Latin	-ōssus	—

kaloza — Etymology, Origin & Word History | Etymology Explorer