| able, ible | capable of (adjective suffix) | portable - able to be carried legible - able to be read |
| ac, ic | like, pertaining to | cardiac - pertaining to heart aquatic - pertaining to water |
| acious, icious | full of | audacious - full of daring, avaricious - full of greed |
| al | pertaining to | maniacal - insane portal - doorway logical - pertaining to logic |
| ant, ent | full of | eloquent - pertaining to fluid, effective speech. verdant - green |
| ary | like, connected with | dictionary - book connected with words honorary - connected with honor |
| ate | to make (verb suffix) | consecrate - to make holy mitigate - make less severe |
| ation | that which is (noun suffix) | irritation - that which is irritated |
| cy | state of being (noun suffix) | democracy - ruled by people obstinacy - obstinate state, stubbornness |
| eer, er, or | person who (noun suffix) | mountaineer - person who climbs mountains teacher - one who teaches advisor - person who advises |
| escent | becoming (adjective suffix) | evanescent - tending to vanish pubescent - arriving at puberty |
| fic | making, doing (adjective suffix) | fantastic - arousing great wonder terrific - arousing great fear |
| fy | to make (verb suffix) | magnify - to enlarge petrify - turn to stone |
| iferous | producing, bearing (adjective suffix) | pestiferous - carrying disease vociferous - having a loud voice |
| il, ile | pertaining to, capable of (adjective suffix) | civil - polite docile - easily taught or led |
| ism | doctrine, belief (noun suffix) | monotheism - belief in one God communism - real bad idea |
| ist | dealer, doer (noun suffix) | realist - one who is realistic socialist - hardly a realist |
| ity | state of being (noun suffix) | sagacity - state of being wise |
| ive | like (adjective suffix) | quantitative - concerned with number or volume |
| ize, ise | to make (verb suffix) | harmonize - make harmonious revolutionize - make revolutionary |
| oid | resembling, like (adjective suffix) | ovoid - like an egg anthropoid - resembling a human |
| ose | full of (adjective suffix) | verbose - full of words |
| osis | condition (noun suffix) | psychosis - diseased mental condition hypnosis - induced sleep |
| ous | full of (adjective suffix) | nauseous - full of nausea ludicrous - foolish |
| tude | state of (noun suffix) | fortitude - state of strength certitude - state of certainty |