სტრატოსფერო • (stratosp'ero)=stratosphere=στρατόσφαιρα

სტრატოსფერო • (stratosp'ero)=stratosphere=στρατόσφαιρα

WIKTIONARY: Etymology

strat(um) + -o- + sphere

From Latin strātum (“a spread for a bed, coverlet, quilt, blanket; a pillow, bolster; a bed”), neuter singular of strātus, perfect passive participle of sternō (“spread”).

From Old French sphere, from Late Latin sphēra, earlier Latin sphaera (“ball, globe, celestial sphere”), from Ancient Greek σφαῖρα (“ball, globe”), of unknown origin. Compare Middle Persian 𐭮𐭯𐭩𐭧𐭫 (spihr, “sphere, sky”), Persian سپهر (sepehr, “sky”).