P / pĕr-infirmus
adjective

pĕr-infirmus

fem. pĕr-infirma · neut. pĕr-infirmum
very weak; feeble
very weak or feeble: si quis perinfirmus est, Cels. 2, 14: sunt enim levia et perinfirma, quae dicebantur a te, Cic. Fin. 2, 16, 53; Cels. 2, 14 fin.