mit-
combining form 
or mito-
Etymology: New Latin, from Greek, from mitos — more at dimity 
1. : thread 
< mitoplast >
2. : mitosis 
< mitoclastic >
< mitodepressive >
< mitogenetic >
or mito-
1.
< mitoplast >
2.
< mitoclastic >
< mitodepressive >
< mitogenetic >