introvert
noun
• a shy, reticent person.
introvert
adjective
• another term for introverted.
Origin:
mid 17th century (as a verb in the general sense ‘turn one's thoughts inwards (in spiritual contemplation’)): from modern Latin introvertere, from intro- ‘to the inside’ + vertere ‘to turn’. Its use as a term in psychology dates from the early 20th century.
