'seed-shaped' originates from the combination of 'seed' and 'shaped', where 'seed' refers to the reproductive part of a plant and 'shaped' indicates form or appearance.

'Seed' comes from Old English 'sǣd', and 'shaped' comes from Old English 'sceapian', meaning 'to create or form'.

Initially, it meant 'having the form of a seed', and this meaning has remained consistent in modern usage.