Czech Etymology Inherited from Proto-Slavic *sobojǫ. Pronunciation IPA(key): [ˈsɛbou̯] Pronoun sebou (reflexive) instrumental of sebe: with/by oneself with/by myself with/by yourself with/by himself with/by herself with/by itself with/by ourselves with/by yourselves with/by themselves Related terms jimijíjímmnounáminiminítebouvámiWikiwand - on Seamless Wikipedia browsing. On steroids.