The season around All Saints' Day and All Souls' Day, combining 'hallow' with 'tide' (an old word for season or period).
From 'hallow' (holy) combined with 'tide' (season), from Old English 'tīd' meaning time or season, a Medieval religious calendar term.
'-tide' words like 'Hallowtide,' 'Christmastide,' and 'Yuletide' preserve the Old English way of marking religious seasons—most are archaic now but they show how differently cultures once divided the year.
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