'eyelidless' originates from the English word 'eyelid' combined with the suffix '-less', where 'eyelid' refers to the protective fold of skin over the eye, and '-less' means 'without'.

'eyelid' comes from Middle English 'eȝelid', which evolved from Old English 'ēagelid', and eventually became the modern English word 'eyelid'.

Initially, 'eyelid' referred to the protective skin over the eye, and 'eyelidless' has consistently meant 'without eyelids'.