GNU Collaborative International Dictionary of English
Found one definition
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Walm (?), v. i. [AS. weallan; cf. wælm, billow. √147.] To roll; to spout; to boil up. [Obs.] Holland.
[1913 Webster]
Walm (?), v. i. [AS. weallan; cf. wælm, billow. √147.] To roll; to spout; to boil up. [Obs.] Holland.
[1913 Webster]