Compositional etymology relying on a segmentation κρα-ν-ἰον, where κρα- is identified as a form of κρεμάννυμι and the -ν- as the initial consonant of νόος. Νόος is an equivalent for "brain", which can be described as suspended in the skull. Meletius  reformulates this etymology and substitutes νόος by ἐγκέφαλος, thereby losing the etymon. The fact the etymology is found both in Meletius (with a secondary modification) and the Gudianum makes it likely that it goes back to Orion. However, where Orion took it from is unclear. It may be from Soranus but there is no positive evidence