
Latin word mane comes from English mature, English matins, Proto-Indo-European *meh₂-
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mature (English)
(intransitive) To gain experience or wisdom with age.. (intransitive, finance) To reach the date when payment is due. (intransitive, of food, especially fruit) To become mature; to ripen.. (transitive) To make something mature. (obsolete) Come to, or in a state of, completed suppuration.. Fully developed; grown up in terms of physical appearance, behaviour or thinking; ripe.. Profound; careful.
matins (English)
Morning prayers. Together with lauds, the earliest of the canonical hours; normally at sunrise, but often earlier.
*meh₂- (Proto-Indo-European)
mane (Latin)
Morning (early) in the morning.