ennuyer

Etymology
From enuier, from  inodiare. Compare Italian annoiare, Spanish enojar.

Verb

 * 1) to afflict with boredom; to bore
 * 2)  to be bored
 * 3)  to miss something or someone
 * 4) to annoy, bother, trouble
 * 5) to worry
 * 1) to worry

Usage notes

 * Je suis ennuyé → "I am bored" (literal translation).
 * Je m'ennuie → "I bore myself" → "I am bored" (adapted translation).
 * The difference between the two terms above is that  ennuyé suggests being annoyed by someone or something, whereas the reflexive form of ennuyer, s'ennuyer, suggests the boredom comes from a lack of activity.