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For instance, there are two different un-prefixes in English: one meaning "not, opposite of", the other meaning "reverse action, deprive of, release from". The first prefix un-"not" is attached to adjective and participle bases while the second prefix un-"reverse action" is attached to either verb or noun bases. Thus, English can have two words ...
Adding a prefix to the beginning of an English word changes it to a different word. For example, when the prefix un-is added to the word happy, it creates the word unhappy. The word prefix is itself made up of the stem fix (meaning "attach", in this case), and the prefix pre-(meaning "before"), both of which are derived from Latin roots.
Meaning Origin language and etymology Example(s) -iasis: condition, formation, or presence of Latin -iasis, pathological condition or process; from Greek ἴασις (íasis), cure, repair, mend mydriasis: iatr(o)-of or pertaining to medicine or a physician (uncommon as a prefix but common as a suffix; see -iatry)
Search for Un (prefix) in Wikipedia to check for alternative titles or spellings. Start the Un (prefix) article , using the Article Wizard if you wish, or add a request for it ; but please remember that Wikipedia is not a dictionary .
The following is an alphabetical list of Greek and Latin roots, stems, and prefixes commonly used in the English language from P to Z. See also the lists from A to G and from H to O . Some of those used in medicine and medical technology are not listed here but instead in the entry for List of medical roots, suffixes and prefixes .
"mono-" is from Greek monos = "alone". "un" = 1 and "nona-" = 9 are from Latin. The others are derived from Greek numbers. The forms 100 and upwards are not correct Greek. In Ancient Greek, hekaton = 100, diakosioi = 200, triakosioi = 300, etc. The numbers 200-900 would be confused easily with 22 to 29 if they were used in chemistry.
Meaning: a prefix used to make words with a sense opposite to that of the root word; in this case, meaning "without" or "-less". This is usually used to describe organisms without a certain characteristic, as well as organisms in which that characteristic may not be immediately obvious.
These prefixes are usually automatically inserted by the email client. Re: or RE: followed by the subject line of a previous message indicates a reply to that message. "Re" in a narrower sense though is, as RFC 5322 3.6.5. explicitly states, an abbreviation of " in re "—"re" being the ablative singular of rēs ("thing", "circumstance ...