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The Collaborative International Dictionary
porwigle

Polliwig \Pol"li*wig\, Polliwog \Pol"li*wog\, n. [OE. polwigle. Cf. Poll head, and Wiggle.] (Zo["o]l.) A tadpole; -- called also purwiggy and porwigle.

Wiktionary
porwigle

n. (obsolete form of polliwog English)