yearday

Noun

yearday (plural yeardays)

1. (historical, rare) Synonym of anniversary, a day occurring in a yearly cycle.
   • The Second Advent of Christ to remove to heaven his waiting people takes place at the end of the yearday sixth vial in accordance with his personal announcement, […]1887, Michael Baxter, Forty coming wonders
   • It was reported that the Vice-President and Mrs. Dowling and the Secretary and Mrs. McDougall were to represent the Scottish Institute at the Accountants' Yearday of the Nederlands Instituut van Accountants and at the Silver Jubilee celebrations in Düsseldorf […]1956, The Accountant's Magazine, volume 60, page 584

   Synonyms:

   anniversary

   1. (historical, nonstandard, rare) Synonym of birthday, the anniversary of one's birth.
      • Today was her grandchild's yearday. Every year on the day the Little was born, the Littles celebrated their yearday. Henna Rose wanted to prepare a special evening meal and celebration for Knotten tonight. Knotten was ten yeardays today.2020, Pamela L. Volpert, The Tribes of the Littles, page 31
   2. (historical, nonstandard, rare) An annual day; the anniversary of an event or occasion.
      • To wit, on certain year-days he would tarry alone in his tower, and his lamp might be seen gleaming till midnight.2020, Georg Ebers, The Historical Romances of Georg Ebers
   3. (historical, rare) Synonym of deathday or (Christianity) year's mind, the anniversary of a person's death, particularly as observed with a requiem mass or other commemoration.
      • His executors were to keep his yearday for twenty years at the cost of 20s. per year, and finally after his wife's death the bailiffs and commonalty of Southwold were to find a priest for sixteen years next following to sing for his soul […]1907, William Page, The Victoria history of the county of Suffolk, volume 1, page 660
      • For they were the very days on the which the women celebrated the feast and yearday of Adonis' death: and there were also in divers parts of the city, images of dead men carried to burial, and women following them, mourning and lamenting.1998, Plutarch (in translation), Lives of the Noble Grecians and Romans, page 310
2. A particular day numbered from the first day in the year, without regard to month divisions.
   • To avoid the idiosyncracies^([sic]) of leap years, we propose, as a first approximation to the actual yearday, a standardized yearday s that is a function of (m, d) only, s = S(m) +dl (6) where 5 is a function of m only.1985, Mathematics magazine, volume 58
   • […] the amended yearday which was the middle day in flowering range. the yearday which is equivalent to commencement of flowering. the amended yearday (based on flowering yearday) which is the equivalent to the commencement of […]1998, Australian Journal of Botany, volume 46