'agamosperm' originates from Modern Latin/Greek elements: Greek 'a-' meaning 'without', Greek 'gamos' meaning 'marriage' or 'sexual union', and Greek 'sperma' meaning 'seed'.

'agamosperm' was coined in scientific usage from the New Latin/Greek compound related to 'agamospermy' (the condition/process). The term developed in botanical literature in the 19th–20th centuries to describe seed formation without fertilization and has been used in modern English scientific texts as 'agamosperm'.

Initially formed to denote 'a seed or organism resulting from agamospermy', its meaning has remained specialized and stable, referring specifically to individuals produced by asexual seed development.