INROAD Copy link • INROADHostile incursion, incursio: irruptio. To make an inroad, incursionem or irruptionem facere. To make inroads, incursiones hostiliter facere: to prevent the incursions of the enemy, prohibere hostem ab incursionibus (Caes.): he promised to make no incursions into their territory, eorum fines se non violaturum promisit (Caes.). IMPROPR., Encroachment, attack (Vid :), imminutio alicujus rei (a lessening of it; e.g., dignitatis). To make inroads on anything, violare aliquid (e.g., jus); violare atque imminuere (e.g., officium, jus, etc.). To make an inroad on one of the people’s immemorial privileges, quod populi semper proprium fuit... imminuere, or mutare (Cic.).