The word 'subaltern' has a direct lineage from Latin, formed from the combination of sub- (under) and alternus (alternate, other). Its original, literal sense in military contexts was "subordinate officer," one who is "under" or "alternate" to a higher-ranking commander. Over time, this hierarchical meaning broadened beyond the military. In critical theory, particularly postcolonial studies, the term was adopted to describe social groups who are "under" dominant power structures and rendered as the "other," whose voices and agency are systematically marginalized. Thus, the word's journey reflects a shift from a specific military rank to a powerful abstract concept denoting systemic subordination and otherness.

Structure: sub (under) + altern (other) sub: Latin origin, meaning "under, below, beneath." It functions as a prefix indicating inferiority, secondary position, or location. altern: From Latin alternus, meaning "one after the other, alternate," derived from alter, meaning "other (of two)." It functions as a root indicating otherness or alternation.