There are 2 definitions of -ane in English:

-ane1

Syllabification: -ane

suffix

Variant spelling of -an, usually with a distinction of sense (such as humane compared with human) but sometimes with no corresponding form in -an (such as mundane).

Definition of -ane in:

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Word of the day internecine
Pronunciation: ˌɪntəˈniːsʌɪn
adjective
destructive to both sides in a conflict

There are 2 definitions of -ane in English:

-ane2

Syllabification: -ane

suffix

Chemistry
Forming names of saturated hydrocarbons: methane propane

Origin

on the pattern of words such as -ene, -ine.

Definition of -ane in:

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Word of the day internecine
Pronunciation: ˌɪntəˈniːsʌɪn
adjective
destructive to both sides in a conflict