Malay

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Malay Wikipedia has an article on:
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Etymology

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Affixed asid +‎ ke- -an.

Noun

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keasidan (plural keasidan-keasidan, informal 1st possessive keasidanku, 2nd possessive keasidanmu, 3rd possessive keasidannya)

  1. (chemistry) acidity
    Synonym: keasaman (Indonesian)

Further reading

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