'asparaginic' originates from Neo-Latin/scientific formation, specifically from the element 'asparagin-' (from 'asparagine') combined with the suffix '-ic' meaning 'relating to'.

'asparaginic' developed from the noun 'asparagine' (French 'asparagine', Neo-Latin 'asparaginum'), which ultimately traces back to Latin 'asparagus' (via Greek 'asparagos') because asparagine was first isolated from asparagus.

Initially it meant 'of or pertaining to asparagine' and this meaning has remained essentially unchanged in modern scientific usage.