Why English borrowed words from other languages?

Many languages have borrowed Words from each other, and English is no exception. Sometimes physical thing an an idea is introduced from Another Country and we take the Word that the other country is already using.

We have....

- "gestalt," a German Word with a specific use in psychology, first used by a German writer;

- "rotisserie," a French cooking term;

- "burrito," a Spanish originally meaning "little donkey" but now referring to a food;

- "vodka," a Russian name of a drink introduced from Russia;

- "smorgasbord," a Swedish Word for a buffet table of bread and other ingredients.

It works in the other direction, too. In Mexico, "hotdog" is sometimes used. A Word that has evolved into "redingote" in French started from English "riding coat."