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The Collaborative International Dictionary
Lanterning

Lantern \Lan"tern\, v. t. [imp. & p. p. Lanterned; p. pr. & vb. n. Lanterning.] [Cf. F. lanterner to hang at the lamp post, fr. lanterne. See Lantern.] To furnish with a lantern; as, to lantern a lighthouse.

Wiktionary
lanterning

vb. (present participle of lantern English)