Sacking is a gerund or noun from the verb and noun sack, ultimately from Latin saccus ('bag'); the 'plunder' sense derives from Italian saccheggiare via the phrase 'put to the sack'. The historical chain includes Latin saccus and Ancient Greek sákkos. Older glosses in the chain include "bag", "plunder", and "put to the sack", which help explain the semantic range of the modern word. Morphologically, sacking is best read as borrowing, yielding an English noun shaped by both form history and later usage. In current English it functions as a noun, with the sense "coarse fabric used to make sacks; dismissal from a job; plunder of a place". related forms include sack and sackcloth. The result is an English noun whose etymology preserves the older forms while supporting the word's specialized modern meaning.