An Etymological Dictionary of Astronomy and Astrophysics

Deviating from the normal or common order, form, or rule. → anomaly.

Etymology (EN): From Gk. anomalos “uneven, irregular,” from → an- “not” + homalos “even,” from homos “same”.

Etymology (PE): Nâsân, from Pers. nâ- “not” + sân “rule, custom, law, fashion,” literally “out of rule”.