It is easier to adopt words into English because English has so few inflections. If it's a noun, you need to be able to add an -s to the end. If it's a verb, yo

It is easier to adopt words into English because English has so few inflections. If it's a noun, you need to be able to add an -s to the end. If it's a verb, you need to add -s, -ed, and -ing. And because the spelling is so random you don't need to make any other changes: just throw it in there. People will probably pronounce it wrong until it becomes widely adopted, like lieutenant, at which point however they're pronouncing it is the correct pronunciation in English (and it may, like lieutenant, have different correct pronunciations in different dialects). I suspect this contributes to the size of the English lexicon.