'neuroendocrine' originates from the combination of 'neuro-' from Greek 'neuron' meaning 'nerve' and 'endocrine' from Greek 'endon' meaning 'within' and 'krinein' meaning 'to separate'.

'neuroendocrine' was formed by combining the terms 'neuro-' and 'endocrine' to describe the interaction between the nervous and endocrine systems.

Initially, it referred to the basic interaction between nerves and hormones, but over time it has come to encompass a broader understanding of their complex interactions.