The Austronesian Comparative Dictionary

*Si-₁ verbal prefix marking instrumental or benefactive voice

PAN Si-₁ verbal prefix marking instrumental or benefactive voice

Form.
Atayal si- instrumental prefix
s- marker of instrumental passive
Bunun is- prefix - instrumental
Paiwan si- be the instrument or cause of
Atayal (Mayrinax) si- instrumental prefix

PMP i- verbal prefix marking instrumental or benefactive voice

WMP
Tagalog i- marker of instrumental focus verbs (formed by prefixing to an instrumental adjective: )
Aklanon i- prefix for future and command verb forms in the instrumental focus
Hiligaynon i- general proposed action instrumental affix
Cebuano i- instrumental passive verb affix, future
Bikol i- verbal affix, instrumental, infinitive-command form
OC
Bugotu i- instrumental prefix to nouns
Lau i- instrumental prefix
Sa'a i- instrumental prefix forming noun from verb
Motu i- instrumental prefix ( 'sweep', 'broom', 'bore a hole', 'boring instrument', etc.)
Arosi i- instrumental prefix
Rennellese i- causative, instrumental, locative, ablative, and temporal preposition, and causative conjunction
Mota i- instrumental prefix
Fijian i- a noun preformative added to verbal roots, sometimes with reduplications. It indicates (1) the instrument of an action; (2) the scene of the action, (3) the result of an action, (4) the method of an action, (5) the actor, (6) the person or thing acted on