Lung \Lung\, n. [OE. lunge, AS. lunge, pl. lungen; akin to D. long, G. lunge, Icel. & Sw. lunga, Dan. lunge, all prob. from the root of E. light. ? See Light not heavy.]

(Anat.) An organ for a["e]rial respiration; -- commonly in the plural.

My lungs began to crow like chanticleer. --Shak.

Source: Webster's Revised Unabridged Dictionary (1913)