Distress of mind caused by a failure of aims or plans, want of appreciation, mistakes etc; vexation or mortification.
A type of leather or skin with a rough surface.
To bother or vex; to mortify.
Agitation; the state of being perturbed
Variation in an orbit due to the influence of external bodies
A small change in a physical system, or more broadly any definable system (such as a biological or economic system)