Entries linking to biathlon
Nativized from 16c. Occasionally bin- before vowels; this form originated in French, not Latin, and might be partly based on or influenced by Latin bini "twofold" (see binary). In chemical terms, it denotes two parts or equivalents of the substance referred to. Cognate with twi- and di- (1).
"athletic contest of five separate events involving the same competitors and all taking place on the same day," 1650s, from Greek pentathlon "the contest of five exercises," from pente "five" (from PIE root *penkwe- "five") + athlon "prize, contest," a word of uncertain origin. Earlier in English in Latin form pentathlum (1706). The Greek version consisted of jumping, sprinting, discus and spear throwing, and wrestling. The modern version (1912) consists of horseback riding, fencing, shooting, swimming, and cross-country running. Related: Pentathlete.