"Y su grito de guerra fue temible, sí, como un millar de océanos embravecidos, que llenaba de temor las almas de todos aquellos que lo escucharon. Una sola palabra, llena de odio, ira y venganza. Una sola palabra, un solo nombre: ¡¡¡GGRRRIIIIII-FFIIIIIIIIIITH!!!" Evangelio del Berserker Tomo 13 85:27-28.(By ALCAVDON)
Nobody but Guts, that is still sane, knew of Griffith's transformation outside of Godhand. Godhand would obviously call him Femto. He is still Griffith before and after the Eclipse. He is also still 'Femto' after being reincarnated which is shown when he kills Emperor Ganishka. Femto is only his Godhand name.
Just finished watching this 3rd and last OVA and i was in shock! just AWESOME! faithful to the manga, Kentaro Miura, if you sir are reading this, I BEG you to continue with the saga for christ sake! Berserk forever!