Hal·ley 
(hălē), Edmund or Edmond 1656-1742.
(hălē), Edmund or Edmond 1656-1742. English astronomer who applied Newton's laws of motion to predict correctly the period of a comet (1705).
- Indo-European root: skand-
- Indo-European root: skei-
- Indo-European root: skel-
- Indo-European root: skel-
- Indo-European root: sker-
- Indo-European root: sker-
- Indo-European root: sker-
- Indo-European root: (s)keu-
- Indo-European root: skeud-
- Indo-European root: skrībh-
- Indo-European root: sleiə-
- Indo-European root: sleubh-
- Indo-European root: slēb-
- Indo-European root: slēg-
- Indo-European root: smei-
- Indo-European root: (s)mer-
- Indo-European root: (s)mer-
- Indo-European root: sneigwh-
- Indo-European root: (s)neəu-
- Indo-European root: snā-
- Indo-European root: (s)nāu-
- Indo-European root: (s)nē-
- Indo-European root: so-
- Indo-European root: sol-
- Indo-European root: spek-