What is the meaning of Kalka?

Alternative spelling of galga

trample

ram, press

cargo; load

to lime, limewash

to calcify

to lose one’s memory or mental acuity, as due to age; to become senile

onionskin, tracing paper

carbon paper

carbonless copy paper

calque

to lime (treat with lime (calcium hydroxide (kalciumhydroxid) or calcium oxide (kalciumoxid)), especially to reduce acidity)

to lime (apply limewash (to something))

Source: wiktionary.org