(Greek: original [first in time], beginning, first cause, origin, ancient, primitive, from the beginning; most basic)

(Greek > Latin: race, kind; line of descent; origin, creation; pertaining to sexual relations, reproduction, or heredity; and more recently, a gene or genes)

(Latin: birth, beget; descent, origin, creation, inception, beginning, race, sort; kind, class)

(of uncertain origin: to spoil; to bungle, to cause something to fail through carelessness or incompetence)

(meaning and origin)

(Greek: dance; involuntary movements; spasm; in medicine, it is used to reveal a nervous disorder either of organic origin or from an infection)

(Indo-European is believed to be the origin of many modern languages)

(Latin: a prefix occurring in words of Latin origin used in the senses: out, out of, from; upward; completely, entirely; to remove from, deprive of; without; former [said of previous holders of office or dignity])

(Unknown origin: act or habit of showing off)

(Uncertain origin: treat with disdain or contempt; to jeer)

(Latin: a hall; a vestibule; a lobby; monastic cloister, of Germanic origin)

(Latin: Probably from mitulus "mussel", of unknown origin [the change from m to n has not been explained]. It is also said to possibly come from Latin nidificare or nidulari, "to nest"; from nidus "nest", but there is no confirmation for either theory)

(Where did the word “sandwich” really come from?)

(More history and updates to the "sandwich")

(word origin and the historical development of sarcophagus and related sarcasm, sarcastic)

(Latin: to ring, to jingle; formed by reduplication (for the sake of emphasis) from the base of Latin tinnire, which is of imitative origin.)

(origin and background of the study of animals in motion)