Swithe

Origin

From Middle English swithe, swythe, from Old English swīþe ("very much, exceedingly, severely, violently, fiercely, especially, exceedingly"), from Proto-Germanic *swinþaz, *swenþaz ("strong"), from Proto-Indo-European *swent- ("active, healthy"). More at swith.

Full definition of swithe

Adverb

1. Alternative form of swith
2. instantly, quickly, speedily, rapidly, stronglyThat 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