Where does “ikasiyam” come from?

ikasiyam (Bikol Central) comes from Bikol Central siyam, from Proto-Philippine *siám, from Proto-Malayo-Polynesian *siam.

Ancestry of “ikasiyam”, step by step

ikasiyam traces back through two separate lines of ancestry.

via Bikol Central siyam

StepLanguageWordMeaning
1Bikol Centralsiyamnine
2Proto-Philippine*siám—
3Proto-Malayo-Polynesian*siam—

via Bikol Central ika

StepLanguageWordMeaning
1Bikol Centralika—
2Proto-Malayo-Polynesiani-kahu—
3Proto-Austronesiani-kaSu—
Every word from Proto-Malayo-Polynesian *siam →Every word from Proto-Philippine *siám →Every word from Bikol Central siyam →