'carpelless' originates from the word 'carpel', which comes from the New Latin 'carpellum', derived from the Greek 'karpos' meaning 'fruit'. The suffix '-less' indicates the absence of something.

'carpel' changed from the Greek word 'karpos' to the New Latin 'carpellum', and eventually became the modern English word 'carpel'.

Initially, 'carpel' referred to the fruit or seed, but over time it evolved to mean the female reproductive organ of a flower.