Sypian

According to the Old English Dictionary:

(?), sipian (?);

sypian

p. ode To delay, be slow:--Hé (a sick person) sipaþ and árísþ tricabit et surget, Lchdm. iii. 151, 2, 19, 28. (The reference is to an illness which begins on the 5th, 17th, or 27th day of the month.) Sypigende senescens, frigescens, Germ. 397, 345. sypian