arch+or+expanse+of+heaven

  • 21sky — [skī] n. pl. skies [ME < ON, a cloud, akin to OE sceo, a cloud, OHG scuwo, shadow < IE base * (s)keu , a cloud, OHG scuwo, shadow < IE base * (s)keu , to cover, hide > HIDE1, L cutis, skin, Gr skytos, leather] 1. [often pl.] the upper …

    English World dictionary