linguistic:paraphrasing
Etymology

The word squirrel, first attested in 1327, comes from the Anglo-Norman esquirel which is from the Old French escurel, the reflex of a Latin word sciurus, which was taken from the Ancient Greek word σκίουρος (skiouros; from σκία-ουρος) 'shadow-tailed', referring to the long bushy tail which many of its members have. Sciurus is also the name of one of its genuses.

The native Old English word for the squirrel, ācweorna, only survived into Middle English (as aquerne) before being replaced. The Old English word is of Common Germanic origin, cognates of which are still used in other Germanic languages, including the German Eichhörnchen (diminutive of Eichhorn, which is not as frequently used); the Norwegian ikorn / ekorn; the Dutch eekhoorn; the Swedish ekorre and the Danish egern.

A group of squirrels is called a "dray" or a "scurry".