INFRA, Latin. Below, under, beneath, underneath. The opposite of supra, above. Thus we say primo gradu est supra, pater, mater; infra, filius, filia. In the first degree of kindred in the ascending line; above, is the father and the mother; below, in the descending line, the son and daughter. Inst. 3, 6, l.
3. It also signifies during; as infra furorem during the madness.