Webster's Revised Unabridged Dictionary · 1913

Consternation

Consternation , noun

[Latin consternatio, from consternare to overome, perplex, an accessory form of consternere to throw down, prostrate; con + sternere to spread out, throw down: compare French consternation. See Stratum.]

Amazement or horror that confounds the faculties, and incapacitates for reflection; terror, combined with amazement; dismay.
The chiefs around, In silence wrapped, in consternation drowned. Attend the stern reply. — Pope