Where does “gratisan” come from?

gratisan (Indonesian) comes from Indonesian gratis, from Dutch gratis, from Latin gratis, from Latin grātia, from Latin -ia, from Latin -ius, from Proto-Italic -jōs, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

Ancestry of “gratisan”, step by step

gratisan traces back through two separate lines of ancestry.

via Indonesian gratis

StepLanguageWordMeaning
1Indonesiangratisfree, without charge
2Dutchgratisfree, without charge
3Latingratisout of favor or kindness, without recompense or...
4Latingrātiagrace
5Latin-iaUsed to form a feminine abstract noun, usually...
6Latin-iusforming adjectives from nouns; nominative neuter...
7Proto-Italic-jōsForms comparative adjectives
8Proto-Indo-European-yósCreates adjectives from noun or verb stems

via Indonesian an

StepLanguageWordMeaning
1Indonesianan
Every word from Proto-Indo-European -yósEvery word from Latin -iaEvery word from Latin -ius