What does "whatso" mean?

Whatso: Whatsoever; whosoever; whatever; anything that. [Obs.] Whatso he were, of high or low estate. Chaucer. Whatso the heaven in his wide vault contains. Spenser. WHATSOE'ER What`so*e'er", pron. A contraction of whatsoever; -- used in poetry. Shak.

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