off-
- referring to position
off-campus, off-court, off-field, off-road, off-screen, offshore, off-site, off-stage, off-track
- when something is not the case
off-balance, off-centre, off-guard, off-key, off-peak, off-season
-off
- to form adjectives from adverbs referring to a financial situation
badly-off, better-off, comfortably-off, well-off, worse-off
-oid
- referring to words which show that something is similar to something else
cuboid, fungoid, humanoid, tabloid
-ological, -ology
- to form nouns referring to an area of study or system
anthropology, astrology, biology, ecology, geology, graphology, ideology, meteorology, methodology, mythology, neurology, ornitology, pathology, physiology, psychology, sociology, technology, terminology, theology, zoology
on-
- to form nouns referring to a place where something takes place
on-court, on-field, on-screen, onshore, on-site, on-stage
once-
- to form adjectives from adjectives
once-common, once-famous, once-fashionable, once-forgotten, once-happy, once-lively, once-lovely, once-popular, once-powerful, once-private, once-respected
-or
- to form nouns from verbs; they usually refer to occupations
actor, administrator, advisor, agitator, collaborator, collector, competitor, conductor, conspirator, contributor, counsellor, creator, director, editor, inspector, inventor, investigator, moderator, narrator, operator, possessor, protector, sailor, speculator, supervisor, visitor
-osis
- referring to a process or state
diagnosis, hypnosis, metamorphosis
- referring to illness or disease
neurosis, psychosis, sclerosis, tuberculosis
-ous
- to form adjectives which express a quality possessed by someone or something
adventurous, ambiguous, ambitious, anonymous, anxious, cautious, conspicuous, contemptuous, continuous, courageous, curious, dangerous, enormous, famous, furious, gracious, impetuous, mervellous, mysterious, nervous, nutritious, obvious, previous, religious, sensuous, serious, simultaneous, spacious, spontaneous, superstitious, tremendous, various
out-
- to form verbs from verbs, nouns and adjectives
outbit, outclass, outdo, outgrow, outjump, outlast, outlive, outpace, outplay, outrun, outsell, outsmart, outstare, outswim, out-talk, out-walk, outwit
over-
- to form adjectives, verbs and nouns expressing a quality or action done to too great extent
over-anxious, overburden, over-cautious, overcharge, over-confident, overcook, overcrowd, over-developed, overdo, overdose, overdue, overeat, overestimate, overexposure, overfill, overgrown, overheat, overload, over-populated, overproduce, over-protective, overrate, over-react, oversized, oversleep, overspend, overweight, overwork, over-worried
- to form verbs from nouns and verbs
overcome, override, overrule, overrun, overthrow, overturn
