The act or state of being out of breath; or historically, a wind mechanism for operating bells.
Compound of 'bell' plus 'wind,' possibly referring to the breath or air needed to ring bells, or mechanical wind systems in organs and bell towers.
If this word refers to organs, it's a double-layer term—the 'bellwind' would be the air from bellows used to power the wind that makes the bells sound, a wonderful recursive concept.
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