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Italian astro
Ancient Greek ἄστρον (derived)
Ancient Greek ἀστήρ (mention)
Ancient Greek ἀστήρ (derived)
Proto-Indo-European *h₂eHs- (root)
Proto-Indo-European *h₂stḗr (derived)
Proto-Indo-European *h₂eHs- (mention)
Latin astrum (inherited)
Latin astēr (derived)

English disaster (mention)
English disastrous (mention)
Italian astrologia (confix)
Italian nerastro (suffix)
Italian giovinastro (suffix)
Italian biancastro (suffix)
Italian brunastro (suffix)
Italian grigiastro (suffix)
Italian rosastro (suffix)
Italian rossastro (suffix)
Italian verdastro (suffix)
Italian violastro (suffix)
Italian astrobiologia (prefix)
Italian astrofisico (prefix)
Italian asteroide (affix)
Italian astronauta (confix)
Italian fratellastro (suffix)
Italian astrometria (confix)
Italian astrologo (confix)
Italian periastro (prefix)
Italian olivastro (suffix)
Italian politicastro (suffix)
Italian astrofilo (confix)
Italian dolciastro (suffix)
Italian giallastro (suffix)
Italian furbastro (suffix)
Italian vincastro (suffix)
Italian astrobussola (prefix)
Italian astrochimica (prefix)
Italian astrofotometria (prefix)
Italian astrofotometro (prefix)
Italian astrografia (confix)
Italian astrografo (confix)
Italian astrolatria (confix)
Italian astroporto (prefix)
Italian astronavigazione (prefix)
Italian biondastro (suffix)
Italian astrometrico (confix)
Italian filosofastro (suffix)
Italian astrochimico (prefix)
Italian astrocupola (prefix)
Italian astrofotografia (prefix)