pĕr-attentus

a, um, adj.
I. very attentive: animus, Cic. Verr. 2, 3, 5, § 10.—Adv.: pĕrattentē, very attentively: audire aliquem, Cic. Cael. 11, 25.
Lewis & Short
A Latin Dictionary, 1879
An open-access project