sy hælo

Old English

hail (lit. Health be (to) X)
- c. 992, Ælfric, "For Palm Sunday"
  Þæt folc ðe Criste beforan stóp, and þæt ðe him fyligde, ealle hí sungon, "Osanna Filio Dauid," þæt is on urum ġeðēdode, "Sȳ hǣlo Dauides Bearne."
  The people who walked before Christ, and those who followed him, all sung "Osanna Filio David," that is, in our tongue, "Hail, Son of David."