The Austronesian Comparative Dictionary

*sabay₁ do something together with others

PAN sabay₁ do something together with others

Form.
Amis pa-cafay to be a companion, to go with
cafay companion to do something
WMP
Sangir sambe good acquaintance who lives far off
Toratán sambe intimate friend

PWMP sa(m)bay do something together with others

WMP
Ibatan mag-sabay two boats go together
Ilokano sabay-an to accompany; go together
ag-sabáy to act simultaneously; to go, do, etc. together
Tagalog maki-sabáy to go or leave at the same time with another or others
sabáy at the same time; simultaneous
sabáy-sabáy concurrent; occurring together
mag-sabáy to go, do, act, etc. together at the same time; to have or get someone to accompany oneself
Cebuano sábay walk with, beside
Maranao sambay touch lightly, invoke
Kayan habei follow a leader in song; chorus
Old Javanese sambe call, beckon, invoke, invite, bid come, call out
Bikol magka-sabáy to end up together; to coincide
sabáy to do something together; to do something at the same time
sábay accompanying, going along with (as gongs in a musical
maki-sabáy to go with; to do something at the same time as
mag-sabáy to speak at the same time as someone else
sabáy-sabáy concurrent, simultaneous, synchronized, together, in unison

PPh ka-sabáy companion in some activity

WMP
Ibatan ka-sabay a companion in doing something side by side or together
Tagalog ka-sabay-ín to have a person accompany oneself
ka-sabáy simultaneous; occurring at the same time; in conjunction with
Bikol ka-sabáy cohort, colleague, companion