Definify.com
Webster 1913 Edition
Swithe
Swithe
,adv.
 [AS. 
swī[GREEK]e 
strongly, violently.] Instantly; quickly; speedily; rapidly. 
[Obs.] 
That thou doest, do thou 
swithe
. Wyclif (John xiii. 27).
Definition 2025
swithe
swithe
English
Adverb
swithe (comparative swither, superlative swithest)
- Alternative form of swith
 -  instantly, quickly, speedily, rapidly, strongly; very
- That thou doest, do thou swithe. — Wyclif, (John xiii. 27)
 - And he yede and opened the tomb, and there flew out an adder right hideous to see; the which as swithe flew about the city and the country, and soon after the city sank down. — The Travels of Sir John Mandeville