si sis'aaxs [si/sis/*'aaxs]
Stem with modifying proclitic composed of: si=2  begin/make, sis'aaxs  laugh
transitive verb. make someone laugh
Si sis'aaxsu łgu hana̱'a̱ na 'wiihawtgit. I made the little girl laugh who was crying.

Source: Draft Dictionary entry.