'amphipodic' originates from Modern Latin/Greek, specifically from 'Amphipoda' (New Latin), which itself is formed from Greek 'amphi-' meaning 'on both sides' and 'pous/pod-' meaning 'foot'.

'amphipodic' developed from the New Latin taxonomic name 'Amphipoda' and the English noun 'amphipod' (a member of that order), eventually used as the adjective 'amphipodic' in English to describe things pertaining to those crustaceans.

Initially used simply to denote connection with the taxonomic group 'Amphipoda'; over time it has been used more generally to describe characteristics or attributes of amphipods and things relating to them.