Quenya 

astarmo

bystander

astarmo noun "bystander", mainly used in the sense of "witness" (PE17:71)

astarmo

noun. bystander; witness

astarindo

bystander

astarindo noun "bystander" (one standing beside another as a supporter) (PE17:71). Also artarindo.

artarindo

bystander

artarindo noun "bystander" (one standing beside another as a supporter) (PE17:71). Also astarindo.