adverb, conjunction, preposition Archaic.
Origin: before 950; Middle English; Old English siththa, dialectal variant of
siththan, orig.,
sīth thām after that, subsequently to that, equivalent to
sīth subsequently (akin to
Gothic seithus, Old Norse sīth- late,
German seit since) +
thām, dative of demonstrative pronoun, i.e., “to that” (see
the1); compare
Old Norse sīthan sith