Gr. αναισθητος anaisthētos  stupid, senseless  < negative prefix αν- an- ; αισθανομαι aisthanomai  to understand.
● (syn. Anous Ϯ Brown Noddy A. stolidus) "ANÆTHETUS 2.  Minor fuscus, vertice cinereo, rostro glabro.  Anas angustirostra, &c. Barr. } The Noddy; and the Noddy of Cat. t. 88" (Browne 1789).
● (syn. Sula Ϯ Brown Booby S. leucogaster) "ANÆTHETUS 1.  Major melinus subtus albicus, rostro serrato-dentato.  Anseri basino affinis. Slo. Hist. } The Booby; and the Booby of Catesby: t. 87" (Browne 1789).

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2019). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2019). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 20 January 2019).