WHY ARE WORDS BORROWED FROM 1 LANGUAGE INTO ANOTHER 2
Borrowing is a consequence of cultural contact between two language communities. Borrowing of words can go in both directions between the two languages in contact, but often there is an asymmetry, such that more words go from one side to the other. In this case the source language community has some advantage of power, prestige and/or wealth that makes the objects and ideas it brings desirable and useful to the borrowing language community. For example, the Germanic tribes in the first few centuries A.D. adopted numerous loanwords from Latin as they adopted new products via trade with the Romans. Few Germanic words, on the other hand, passed into Latin.The actual process of borrowing is complex and involves many usage events (i.e. instances of use of the new word). Generally, some speakers of the borrowing language know the source language too, or at least enough of it to utilize the relevant word. They (often consciously) adopt the new word when speaking the borrowing language, because it most exactly fits the idea they are trying to express. If they are bilingual in the source language, which is often the case, they might pronounce the words the same or similar to the way they are pronounced in the source language. For example, English speakers adopted the word garage from French, at first with a pronunciation nearer to the French pronunciation than is now usually found. Presumably the very first speakers who