Syntagm

It’s a syntagm.

Paulis, however, argues to have found a Greek etymology. He cites the construction "dita iteon implastruma" 'a poultice made from willow leaves', the first part of which is a Latinization of Greek διὰ ἰτεῶν 'made of willows'. This syntagm, which was supposedly borrowed into Romance as *di’iteón (vel sim.), would have subsequently been reanalyzed as *di teón.