gyisi= [*gyi/si]
preverbal. downriver; or with the tide
../mp3s/gy/gyisi-sc-k-01.mp3 'Naga gyisiwaalt. He took a long time coming down.
Niidzu wil gisi baa boot. I saw a boat going down river.

Related entries: Spelling Variant gisi=  downriver | Stem with modifying proclitic gyisawlks  drift down | Stem with modifying proclitic gyisi'aks  downriver | Stem with modifying proclitic gyisi'awulks  float downstream | Stem with modifying proclitic gyisidaawł  go downstream | Stem with modifying proclitic gyisigyooksk  float downstream | Stem with modifying proclitic gyisihaywaas  northeast wind | Stem with modifying proclitic gyisiyaask  north wind

Source: Draft Dictionary entry.