English
Hallowtide
From hallow + tide.
Proto-Indo-European *kéh₂ilos ‘safe, unharmed’
…
Proto-Germanic *hailagô ‘holy one’
Proto-West Germanic *hailagō
Old English hālga ‘a holy one, saint’
Middle English halwe ‘a saint, holy thing, shrine’
English hallow
Proto-Indo-European *deh₂y- ‘to share, divide’
…
Proto-Germanic *tīdiz ‘time’
Proto-West Germanic *tīdi ‘time’
Old English tīd ‘time in general’
Middle English tyde ‘a time (period), season’
English tide
Today it means
noun Hallowmas
Language periods are conventional ranges, not dates for this word.
Etymograph / Hallowtide