They did not like even to put a positive name to the concept of nothingness.

That is why our present calendar does not have a year zero; the year before 1 AD (CE) is the year 1 BC (BCE).

It was deemed to be heresy to use the number zero, indeed to use the so called Arabic numeral system, the one we use today.

Zero was not invented by the Arabs, but by Hindu aristocrats, Brahman scholars, and then Arab traders adopted it and brought it to Europe.

Europeans were forbidden by the Christian Church to use any number system other than Roman Numerals, which has no zero.