Where does “bahasa resmi” come from?

bahasa resmi (Indonesian) comes from Indonesian resmi, from Malay rasmi, from Arabic رَسْمِيّ, from Persian رسمی — official; formal; customary.

bahasa resmi (Indonesian): official language, a language afforded an elevated status in a particular country, state, or other jurisdiction, typically for government use

Definitions

  1. official language, a language afforded an elevated status in a particular country, state, or other jurisdiction, typically for government use

Ancestry of “bahasa resmi”, step by step

bahasa resmi traces back through two separate lines of ancestry.

via Indonesian resmi

StepLanguageWordMeaning
1Indonesianresmilegalized. official; formal
2Malayrasmiofficial
3Arabicرَسْمِيّ—
4Persianرسمیofficial; formal; customary

via Indonesian Bahasa

StepLanguageWordMeaning
1IndonesianBahasalanguage
2Malaybahasalanguage; decorum, appropriate social behavior
3Sanskritभाषाspeech, language; any Prakrit dialect or a...
4Sanskritभाष—
Every word from Persian رسمی →Every word from Arabic رَسْمِيّ →Every word from Malay rasmi →