Discompose, v. t. [imp. & p. p. Discomposed; p. pr. & vb. n. Discomposing.]
Etymology: [Pref. dis- + compose: cf. OF. decomposer, F. décomposer.]
1. To disarrange; to interfere with; to disturb; to disorder; to unsettle; to break up. Or discomposed the headdress of a prude. Pope.
2. To throw into disorder; to ruffle; to destroy the composure or equanimity; to agitate. Opposition . . . discomposeth the mind's serenity. Glanvill.
3. To put out of place or service; to discharge; to displace. [Obs.] Bacon.
Syn. -- To disorder; derange; unsettle; disturb; disconcert; agitate; ruffle; fret; vex.
Shades of meaning
Fernald has no entry of its own for discompose; he lists it under abash.
He lists it without comment; the entries above explain its neighbors.