Note that JLA distinguishes between this form for old age and sybh for white hair, while the latter is used for both in JPA. There also appears to be somewhat of a distinction in JLA between this word and סיבו, inasmuch as they are used in slightly different contexts. This form seems to be used to indicate still somewhat virile old age, the latter "ripe old age". Page refs. in other dictionaries: Jastrow: 975; Levy Ch-W: 2:157;