(sī′kē) noun
1. The human soul; the mind; the intelligence.
2. Psychoanal. The aggregate of all the psychic components constituting a human individual, sometimes considered as an entity functioning apart from or independently of the body.
3. A knot of hair coiled at the back of the head by women in imitation of an ancient Greek style of hairdressing: also Psyche knot. [<Gk. psychē <psychein breathe, blow]

(sī′kē)
In Greek and Roman mythology, a maiden beloved by Eros, who, after many tribulations caused by the jealousy of Venus, is united with her lover and accorded a place among the gods as a personification of the soul.