besiegement vs siege

besiegement

• The act of besieging, or the state of being besieged. 

siege

• A prolonged military assault or a blockade of a city or fortress with the intent of conquering by force or attrition. 

• A period of struggle or difficulty, especially from illness. 

• A prolonged assault or attack. 

• The seat of a heron while looking out for prey. 

• A flock of heron. 

• To assault or blockade a city or fortress with the intent of conquering by force or attrition; to besiege.