Note 108 — Chapter II · STATE OF GAUL IN THE TIME OF CÆSAR.
Reading edition
The amentum was a small strap of leather which served to throw the javelin and doubled its distance of carriage, as recent trials have proved. In the De Bello Gallico, V. 48, there is mention of a Gaul throwing the javelin with the amentum; but this Gaul was in the Roman service, which explains his having more perfect arms. Strabo says that the Gauls used javelins like the Roman velites, but that they threw them with the hand, and not by means of a strap. (Strabo, edit. Didot, II. 65.)