con·ster·nate 
(kŏnstər-nāt′)
(kŏnstər-nāt′)tr.v. con·ster·nat·ed, con·ster·nat·ing, con·ster·nates
To cause consternation in.
[Latin cōnsternāre, cōnsternāt- : com-, intensive pref.; see COM- + sternere, to throw down; see ster-2 in the Appendix of Indo-European roots.]