'arseniosiderite' originates from New Latin, specifically from the combining form 'arsenio-' (from Greek 'arsenikon') and the noun 'siderite' (from Greek 'sideros'), where 'arsenikon' referred to arsenic (originally meaning 'male' or 'potent' in Greek usage that came to name the element) and 'sideros' meant 'iron'.

'arseniosiderite' was coined in the 19th century by mineralogists combining the element-name 'arsenio-' with the established mineral name 'siderite' to indicate a mineral containing arsenic and iron; this coined form then entered mineralogical literature as the standard name 'arseniosiderite'.

Initially the components of the name emphasized composition ('containing arsenic and iron'); over time the compound became fixed as the proper name of the specific mineral 'arseniosiderite' rather than a purely descriptive phrase.