The story
- Old French · derived fromespandre“to expand, extend, spread”
- English todayspandrel
From a diminutive in -el of Anglo-Norman spaundre, of uncertain origin, perhaps from Old French espandre (“to expand, extend, spread”). More at spawn, expand. In the field of biology first used by Stephen Jay Gould and Richard Lewontin.
Etymology from Wiktionary, CC BY-SA 4.0.