Word Study
ember days
OXFORD DICTIONARY
ember days, n.pl. any of the days traditionally reserved for fasting and prayer in the Christian Church, now associated with ordinations.
Etymology
OE ymbren (n.), perh. f. ymbryne period f. ymb about + ryne course
THESAURUS
ember days
Advent, Allhallowmas, Allhallows, Allhallowtide, Annunciation, Annunciation Day, Ascension Day, Ash Wednesday, Candlemas, Candlemas Day, Carnival, Christmas, Corpus Christi, Easter, Easter Monday, Easter Saturday, Easter Sunday, Eastertide, Epiphany, Good Friday, Halloween, Hallowmas, Holy Thursday, Holy Week, Lady Day, Lammas, Lammas Day, Lammastide, Lent, Lententide, Mardi Gras, Martinmas, Maundy Thursday, Michaelmas, Michaelmas Day, Michaelmastide, Palm Sunday, Pancake Day, Passion Week, Pentecost, Quadragesima, Quadragesima Sunday, Septuagesima, Shrove Tuesday, Trinity Sunday, Twelfth-day, Twelfth-tide, Whit-Tuesday, White Sunday, Whitmonday, Whitsun, Whitsunday, Whitsuntide, WhitweekFor further exploring for "ember days" in Webster Dictionary Online