To be always optimistic regardless of the facts.
From the name of the tutor and philosopher in Voltaire’s Candide (1759)
“He’s such a pangloss, he’d see he positive in anything.”
“Her panglossian thinking always got us through.”
Something or someone that one vehemently dislikes/ A strong curse.
Early 16th century: from ecclesiastical Latin, ‘excommunicated person, excommunication’, from Greek anathema ‘thing dedicated’, (later) ‘thing devoted to evil, accursed thing’, from anatithenai ‘to set up’.