ob·ser·va·to·ry 
(əb-zûrvə-tôr′ē)
(əb-zûrvə-tôr′ē)n. pl. ob·ser·va·to·ries
1. A building, place, or institution designed and equipped for making observations of astronomical, meteorological, or other natural phenomena.
2. A structure overlooking an extensive view.
[French observatoire (influenced by CONSERVATORY), from observer, to observe, from Old French; see OBSERVE.]
- Indo-European root: legh-
- Indo-European root: legwh-
- Indo-European root: lei-
- Indo-European root: leid-
- Indo-European root: leig-
- Indo-European root: leigh-
- Indo-European root: leikw-
- Indo-European root: leip-
- Indo-European root: leis-
- Indo-European root: leis-
- Indo-European root: leit-
- Indo-European root: lendh-
- Indo-European root: leu-
- Indo-European root: leubh-
- Indo-European root: leudh-
- Indo-European root: leugh-
- Indo-European root: leuk-
- Indo-European root: leu(ə)-
- Indo-European root: lē-
- Indo-European root: līk-
- Indo-European root: lī̆no-
- Indo-European root: lūs-
- Indo-European root: mag-
- Indo-European root: magh-
- Indo-European root: maghu-