Webster's Revised Unabridged Dictionary · 1913

Obliquation

Obliquation , noun

[Latin obliquatio, from obliquare to turn obliquely. See Oblique.]

1.
The act of becoming oblique; a turning to one side; obliquity; as, the obligation of the eyes. [Rare] — Sir T. Browne
2.
Deviation from moral rectitude. [Rare]