from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. Before now; ago.
- adv. Afterward; since then; since.
- adv. Thereupon; next.
- conj. Since.
- prep. Since.
from the GNU version of the Collaborative International Dictionary of English
- adv. Afterwards; since; ago.
- adv. Late, -- as opposed to soon.
- conj. Since; seeing.
from The Century Dictionary and Cyclopedia
- The Scotch spelling of sine.
Scots, from Middle English sitthen, from Old English siththan.(American Heritage® Dictionary of the English Language, Fourth Edition)
Contracted form of sithen. (Wiktionary)