admkush1  +  44203 Thu, 02 Sep 04 08:59 AM Hi folks. I was teaching a lesson on vocabulary and decided to teach prefixes, suffixes and roots (eg Latin and Greek). I am not sure how you differentiate between, for example, a prefix and a root. It seems that "hydro" is a root but "geo" is not. "Bio" maybe a root or a prefix?????? Is it that a root can change spelling in an 'English' word? Any help will be much appreciated. Thanks, Kush admkush1 Joined on Thu, Aug 26 2004 New Member 02 Vocabulary, Suffixes, Spelling, Prefixes

	Mister Micawber  +  44213 Thu, 02 Sep 04 11:29 AM Here's a start: It depends on the meaning of the word, and of course the location of the affix, since a prefix by definition goes on the front. 'Biology'-- 'bios' is the central concept, hence the root, while 'logy' is a suffix meaning 'study, knowlege of'. 'Biorhythm'-- here the rhythm is the central concept (root) and the 'bio' tacks on the idea of life as a prefix. Suffixes are mostly parts-of-speech makers, turning verbs into nouns into adjectives. Mister Micawber Joined on Wed, Aug 4 2004 Yokohama Veteran Member 30,760 'The question is,' said Humpty Dumpty, 'which is to be master-- that's all.' Verbs, Nouns, Suffixes, Affix