Etymology
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-fy 

word-forming element meaning "make, make into," from French -fier, from Latin -ficare, combining form of facere "to make" (from PIE root *dhe- "to set, put").

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deoxy- 

also desoxy-, word-forming element used to make chemical names for compounds which contain fewer oxygen atoms than other compounds, from de- + first two syllables of oxygen.

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phyto- 
word-forming element meaning "plant," from Greek phyton "plant," literally "that which has grown," from phyein "to bring forth, make grow," from PIE root *bheue- "to be, exist, grow."
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-facient 
word-forming element meaning "a doer, one who or that which does," from Latin -facientem (nominative -faciens), combining form of present participle of facere "to make" (from PIE root *dhe- "to set, put").
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-fication 
word-forming element meaning "a making or causing," from Latin -ficationem (nominative -ficatio), forming nouns of action from verbs in -ficare (compare -fy), combining form of facere "to make," from PIE root *dhe- "to set, put."
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psychro- 

word-forming element meaning "cold, characterized by cold, capable of enduring low temperatures," from Latinized form of Greek psykhros "cold," from psykhrein "blow, make cool or cold," which is perhaps from the same root as yielded psyche.

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para- (2)

word-forming element of Latin origin meaning "defense, protection against; that which protects from," from Italian para, imperative of parare "to ward off," from Latin parare "make ready" (from PIE root *pere- (1) "to produce, procure"). It figures in parachute, parasol, parapet, etc.

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phylo- 

before vowels phyl-, modern word-forming element, mostly in the sciences, often meaning "phylum," from Greek phylon, phylē "a tribe," also a political subdivision in ancient Athens, from base of phyein "to bring forth, produce, make to grow," whence also physis "nature" (from PIE root *bheue- "to be, exist, grow").

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histo- 
medical word-forming element, from Greek histos "warp, web," literally "anything set upright," from histasthai "to stand," from PIE root *sta- "to stand, make or be firm." Taken by 19c. medical writers as the best Greek root from which to form terminology for "tissue, structural element of the animal body."
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bene- 
sometimes beni-, word-forming element meaning "well," from Latin bene (adv.) "well, in the right way, honorably, properly," from PIE *dwenelo-, suffixed (adverbial) form of root *deu- (2) "to do, perform; show favor, revere." Opposed to mal-. From the same source come Latin bonus "good," bellus "handsome, fine, pretty," and possibly beatus "blessed," beare "to make blessed."
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