The word "cazarmă" is first attested in 1848 and is considered by Romanian dictionaries to be a loanword from Russian (kazarma). It most likely entered the Romanian language during the Organic Regulation (the Organic Regulation was a constitutional law imposed on Wallachia (1831) and Moldavia (1832) by the Russian Empire.

It modernized administration and justice, introduced the separation of powers in the state (limited), but preserved boyar privileges and consolidated Russian domination, being an important step towards the unification of the Principalities). At that time, other military terms from Russian also entered the language.

The origin of this word lies with the Latin word "quattor" - four. From it was created the derivative "quaterna," "quaterni" - as many as four. Inherited by Provençal in the form "cazernă" - a group of four people. The Latin "quaderna" reached French (caserne) borrowed from Provençal.

At first (16th century), it meant a small room built in fortifications for soldiers on guard duty (usually there were 6), then it was narrowed down to a small room for soldiers in the garrison.