'nectarless' originates from the word 'nectar' combined with the suffix '-less', where 'nectar' refers to the sweet liquid produced by flowers and '-less' indicates absence.

'nectar' changed from the Greek word 'nektar' and eventually became the modern English word 'nectar'.

Initially, 'nectar' referred to the drink of the gods in Greek mythology, but over time it evolved into its current meaning of 'sweet liquid produced by flowers'.