pipe dream
From Ottoman Turkish خلیا, خولیا (hulya), from Ancient Greek χολία (kholía), from χολή (kholḗ, “bile”), from Proto-Hellenic *kʰolā́, from Proto-Indo-European *ǵʰolh₃-éh₂, from *ǵʰelh₃- (“green, yellow”).
Practice speaking and memorizing "hülya" and many other words and sentences in Turkish.