Where does “perumum” come from?

perumum (Indonesian) comes from Indonesian umum, from Malay umum, from Classical Malay عموم, from Arabic عُمُوم — the public.

Ancestry of “perumum”, step by step

StepLanguageWordMeaning
1IndonesianumumOccurring or happening regularly or frequently;...
2Malayumumpublic; common, regular; to announce, to make...
3Classical Malayعموم—
4Arabicعُمُومthe public
Every word from Arabic عُمُوم →Every word from Classical Malay عموم →Every word from Malay umum →