Defn: Whereas; while [Obs.] Whenas, if they would inquire into themselves, they would find no such matter. Barrow.
WHENCE Whence, adv. Etym: [OE. whennes, whens (with adverbial s, properly a genitive ending; — see -wards), also whenne, whanene, AS. hwanan, hwanon, hwonan, hwanone; akin to D. when. See When, and cf. Hence, Thence.]
1. From what place; hence, from what or which source, origin, antecedent, premise, or the like; how; — used interrogatively. Whence hath this man this wisdom Matt. xiii. 54. Whence and what art thou Milton.
2. From what or which place, source, material, cause, etc.; the place, source, etc., from which; — used relatively. Grateful to acknowledge whence his good Descends. Milton.
Note: All the words of this class, whence, where, whither,
whereabouts, etc., are occasionally used as pronouns by a harsh
construction.
O, how unlike the place from whence they fell Milton.
Note: From whence, though a pleonasm, is fully authorized by the use
of good writers.
From whence come wars and fightings among you James iv. 1.
Of whence, also a pleonasm, has become obsolete.
WHENCEEVER
Whence*ev"er, adv. & conj.
Defn: Whencesoever. [R.]
WHENCEFORTH
Whence`forth", adv.
Defn: From, or forth from, what or which place; whence. [Obs.]
Spenser.