In OE the vocabulary mainly grew by means of word-formation. The words fell into 3 main types:
· simple words(root-words) – a word consisting of a root-morpheme with no derivational suffixes (e.g. OE ζōd (good), land (land), dæζ (day), etc.);
· derived words –a word consisting of a root-morpheme + 1 or more then one affix (e.g. OE be-ζinnan (begin), ζe-met-inζ (meeting), etc.);
· compound words –a word consisting of more then one root-morpheme (e.g. OE mann-cynn (mankind), fēower-tīene (fourteen), etc.).