Sentence:  His executors were to keep his <WSD>yearday</WSD> for twenty years at the cost of 20"s". 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 ... 
Meaning of the word marked with <WSD> tags:  An annual remembrance day, the anniversary of a death; a day on which prayers are said for the dead.