cern-, cert-, cer-; cret-, creet-, cre-
(Latin: to separate, to sift, to distinguish, to understand, to decide, to determine; separated, separation, to set apart; the glandular extraction or the movement out of a natural substance)
Used to express the ability a person has to distinguish, or to perceive, something with the eyes and the mind. Related to crit-; as in criticize, diacritical, critique, etc.
2. To learn or to find out about something; such as, information or the truth: Debora's doctors have been unable to ascertain the cause of her illness.
A great deal of information these days can be ascertained by anyone with a computer.3. Etymology: from Middle English acertainen, "to inform"; from Anglo-French acerteiner, Old French acertener, "to assure, to certify"; from a-, "to" [from Latin ad] + Latin certus, past participle of cernere, "to determine".
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2: A situation that is learned, or determined with certainty; usually, by making an inquiry or other effort to establish what is going on or what the status is of something.
2. Definitely known, fixed, or settled.
3. Guaranteed to happen or to do something.
4. Established beyond doubt or question; indisputable.
5. Etymology: used from about 1297, "determined, fixed", from Old French certain, from Vulgar Latin certanus, from Latin certus, "sure, fixed"; originally a variant of cernere, "to distinguish, to decide"; originally "to sift, to separate".
2. Relating to an emphatic denial or refusal.
3. Free from doubt or reservation; confident; sure: "I am certain she will come home tonight."
4. Capable of being relied on; dependable.
Although certain appears to be an absolute term, it is frequently qualified by adverbs; such as, in "fairly certain" or "quite certain".
2. Someone who or something that is strongly expected to win or to achieve something.
3. A compete lack of doubt about something; without any doubt.
2. Legally, or medically, declared to be affected by a psychiatric disorder: Sometimes a person can be so deranged mentally and uncontrollable that he or she is certifiable and insane and is committable to a special institution and treated accordingly.
2. A document attesting to the truth of certain stated facts.
3. A confirmation that some fact or statement is true.
4. Etymology: from Old French certifier, "make certain"; from Late Latin certificare, from Latin certus + a form of the root facere, "to make, do".
2. To declare that someone or something has passed a test or achieved a certain standard: The car dealer certifies each car before it is delivered to the buyer.
3. In banking, to indicate on a check that there are sufficient funds to guarantee payment.
2. Etymology: from 15th century Late Latin, literally "to be informed", the passive of Latin certiorare "to inform"; ultimately from, certus "sure", the word occurs in the Latin version of the writ.
2. Something that is certain to happen or about which someone can feel very convinced is accurate: The certitude that Nancy’s father would be there to pick her up after school gave her a sense of safety and confidence which she needed for the exams that day.
3. Etymology: from Latin certitudo, "that which is certain" from certus, "certain" + -tude, "quality, condition of".
2. Emotions such as worry, compassion, sympathy, or regard for someone or something.
3. A matter that affects someone, or that someone has the right to be involved with.
2. Caring and interested in general, or giving care and attention to a particular thing or area.