köken: jakaa (“to divide”) + -e. Attested in Mikael Agricola's translation of the New Testament, where it is used in the plural to refer to pagan rites as an explanatory note for Romans 12(:6). Senses related to division are from the late 19th century; first use pertaining to Biblical verses from circa 1916.
köken: From Proto-Italic *eitər, *eitor, conflation of an r/n-stem (where both stems are conflated, thus gen. itineris from inherited *itinis and analogical *iteris; compare iecur and femur), from Proto-Indo-European reconstructed as *h₁éy-tr̥ ~ *h₁i-tén-, from *h₁ey- (whence eō). Cognate with Tocharian A ytārye (“path, road”), Avestan 𐬌𐬚𐬥𐬀 (iθna) in 𐬞𐬀𐬌𐬭𐬌-𐬌𐬚𐬥𐬀- (paⁱri-iθna-, “(end of) lifetime”).
aile: in itinere, itinerārium, itinerārius, itinerātor, itineror, porta itinerī longissima
Erant omnīnō itinera duo, quibus itineribus domō exīre possent […] .
Learned borrowing from Ancient Greek περικοπή (perikopḗ, “a cutting all round”). In the linguistic "clipping" sense, semantic loan from English clipping.