infantārĭus, a, um, adj. [infans], that has to do with infants (poet. and post-class.). 
Only substt. 
- I.  infantārĭa, ae, f., a woman fond of infants, Mart. 4, 88, 3.
 
- II.  infantārĭi, ōrum, m. plur., sacrificers of infants, an epithet applied to the Christians, who were accused of offering up children, Tert. ad Nat. 1, 2.