proto-
/ˈpəʊtəʊ/(元音前通常为prot-)
combining form
1- original; primitive表示“最早的”; “原始的”:
prototherian
prototype.
1.1
- first; anterior; relating to a precursor表示“第一的”, “先前的”, “与前任有关的”:
protomartyr
protozoon.
词源
from Greek prōtos 'first'.