sith /ˈsɪθ/
之後;以前;從..以來;..緣故
Sith prep., adv., & conj. Since; afterwards; seeing that. [Obs.]
We need not fear them, sith Christ is with us. --Latimer.
Sith thou art rightful judge. --Chaucer.
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Sith Sithe n. Time. [Obs.]
And humbly thanked him a thousand sithes. --Spenser.