māchinō

Meaning

1. Late Latinnonstandardto mill, grind
   ...et orobu id est heruum muccinatum [sic] et tricoscinatum......and orobos, that is eruum [cultivated vetch], ground and sieved...6th–7th c. CE, Ravenna, Translation of Rufus' De Podagra
   Oportet autem antequam macenetur fricare leviter apud lenteum.But before it is ground up it should be gently rubbed with a cloth.6th c. CE, Ravenna, Translation of Oribasius' Synopsis

Origins

From māchina (“device, mill”) + -ō (verb-forming suffix). Parallel formation to the Classical Latin verb māchinor (“plot, scheme”), but never found in a deponent form or with that sense. First attested in the 6th century CE.