The second name is the "patronymic" (Russian: "otchestvo") and comes from one's father's first name. For example, a boy whose father is "Ivan" would havae as patronymic is "Ivanovich". If a boy's father is "Nikolai", his patronymic is "Nikolaevich". If a girl's father is "Ivan", her patronymic is "Ivanovna". If her father is "Nikolai", her patronymic is "Nikolaevna". The patronymic of a boy ends with -"ovich" or "-evich". The patronymic of a girl ends with "-ovna" or "-evna".