неспе́шный (Russian) comes from Russian спе́шный, from Russian спех, from Proto-Slavic spěxъ, from Proto-Slavic spěti, from Proto-Balto-Slavic spḗˀtei, from Proto-Indo-European spéh₁-, from Proto-Indo-European speh₁- — to succeed, to prosper.
неспе́шный (Russian): slow, unhurried, leisurely