Etymology
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-ane 
word-forming element in chemical use, indicating a chain of carbon atoms with no double bonds, proposed 1866 by German chemist August Wilhelm von Hofmann (1818-1892) to go with -ene, -ine (2), -one.
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ethane (n.)
1873, from ethyl + -ane, the appropriate suffix under Hofmann's system.
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heptane (n.)
1872; see hepta- "seven" + chemical ending -ane. So called for its 7 carbon molecules.
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anemo- 
before vowels anem-, word-forming element meaning "wind," from Greek anemos "wind," from PIE root *ane- "to breathe."
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methane (n.)

"inflammable colorless and odorless gas; marsh gas," 1867, coined from chemical suffix -ane + syllable abstracted from methyl.

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hexane (n.)
paraffin hydrocarbon, 1872, from Greek hex "six" (see six) + chemical suffix -ane. So called for its six carbon atoms.
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Enid 
fem. proper name, from Middle Welsh eneit, "purity," literally "soul," from PIE *ane-tyo-, suffixed form of root *ane- "to breathe."
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butane (n.)
paraffin hydrocarbon, 1875, from butyl, hydrocarbon from butyric acid, a product of fermentation found in rancid butter, from Latin butyrum (see butter (n.)) + chemical suffix -ane.
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animate (adj.)
"alive," late 14c., from Latin animatus, past participle of animare "give breath to," also "to endow with a particular spirit, to give courage to, enliven," from anima "life, breath" (from PIE root *ane- "to breathe").
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*ane- 
Proto-Indo-European root meaning "to breathe."

It forms all or part of: anemo-; anemometer; anemone; anima; animadversion; animadvert; animal; animalcule; animalistic; animate; animation; animatronic; anime; animism; animosity; animus; Enid; equanimity; longanimity; magnanimous; pusillanimous; unanimous.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit aniti "breathes;" Greek anemos "wind;" Latin animus "rational soul, mind, life, mental powers, consciousness, sensibility; courage, desire," anima "living being, soul, mind, disposition, passion, courage, anger, spirit, feeling;" Old Irish anal, Welsh anadl "breath," Old Irish animm "soul;" Gothic uzanan "to exhale," Old Norse anda "to breathe," Old English eðian "to breathe;" Old Church Slavonic vonja "smell, breath;" Armenian anjn "soul."
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