'azotaemia' originates from Neo-Latin (medical coinages), specifically from 'azot-' (from French 'azote', meaning 'nitrogen') combined with Greek-derived '-aemia' meaning 'blood condition'.

'azotaemia' derived via Neo-Latin and French (e.g. French 'azotémie') from the word 'azote' (coined in late 18th century) and the Greek-based element '-aemia'; it entered English in medical usage with the modern form 'azotaemia'.

Initially used to indicate the presence of nitrogen (or nitrogenous compounds) in the blood; it has retained this specialized medical meaning referring to elevated blood nitrogenous wastes due to renal dysfunction.