[Eas.ter.tide] n [ME estertide, fr. OE eastortid, fr. eastor + tid time--more at tide] (bef. 12c): the period from Easter to Ascension Day, to Whitsunday, or to Trinity Sunday
EASTERTIDE
Meaning of EASTERTIDE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012