The Collaborative International Dictionary
Impierce
Impierce \Im*pierce"\ ([i^]m*p[=e]rs"), v. t. [Pref. im- in +
pierce. Cf. Empierce.]
To pierce; to penetrate. [Obs.]
--Drayton.
Wiktionary
impierce
vb. (context obsolete English) To pierce; to penetrate.