Etymology
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-saurus 

element used in forming dinosaur names, from Latinized form of Greek sauros "lizard," a word of unknown origin; possibly related to saulos "twisting, wavering."

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-poietic 

word-forming element meaning "making, producing," from Latinized form of Greek poietikos "capable of making, creative, productive," from poiein "to make, create" (see poet).

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ophthalmo- 

before vowels ophthalm-, word-forming element meaning "eye," mostly in plural, "the eyes," from Greek ophthalmos "eye," originally "the seeing," a word of uncertain origin. Perhaps from ōps "eye" (from PIE root *okw- "to see") + a form related to thalamos "inner room, chamber" (see thalamus), giving the whole a sense of "eye and eye socket," but Beekes rejects all this and finds it to be probably Pre-Greek.

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phyco- 

word-forming element in modern science meaning "seaweed, algae," from Latinized form of Greek phykos "seaweed, sea wrack," also "rouge, red make-up made from seaweed;" Beekes writes that it is a loan-word from Semitic and compares Hebrew pūk "eye-rouge." "The meaning 'make-up' is therefore primary for [phykos], too; hence 'seaweed'." Compare fucus, which is probably a Latin borrowing of the Greek word.

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-centric 

word-forming element meaning "having a center (of a certain kind); centered on," from Latinized form of Greek kentrikos "pertaining to a center," from kentron (see center (n.)).

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myo- 

before vowels my-, word-forming element meaning "muscle," from combining form of Greek mys "muscle," literally "mouse" (see muscle (n.)).

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nycti- 

before vowels nyct-, word-forming element meaning "night," from Latinized form of Greek nykti-, a combining form of nyx "night" (see night).

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zeno- 

late 20c. word-forming element used in reference to the planet Jupiter, from Greek zeno-, combining form from Zeus (see Zeus; also compare Zenobia).

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-scopy 

word-forming element meaning "viewing, examining, observing," from Modern Latin -scopium, from Greek -skopion, from skopein "to look at, examine" (from PIE root *spek- "to observe").

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-mane 

word-forming element of French origin, "one who has a mania for," ultimately from Greek -manes "ardent admirer," related to mania "madness" (see mania).

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