- obsessive-compulsive disorder,
Origin of obsession
Examples from the Web for obsessional
Some personality styles seem more prone to instant tearing than others; the hysterical can be contrasted with the obsessional.
It is often found in cases of insanity of the obsessional or of some other type.Tics and Their Treatment|Henry Meigne
1510s, "action of besieging," from French obsession and directly from Latin obsessionem (nominative obsessio) "siege, blockade, a blocking up," noun of action from past participle stem of obsidere "to besiege" (see obsess). Later (c.1600), "hostile action of an evil spirit" (like possession but without the spirit actually inhabiting the body). Transferred sense of "action of anything which engrosses the mind" is from 1670s. Psychological sense is from 1901.