Ambroos is a Dutch male given name, corresponding to the Latin Ambrosius and ultimately derived from the Greek name Ἀμβρόσιος (Ambrosios), meaning "immortal" — from the Greek ambrotos combined with the prefix a- ("not") and brotos ("mortal"). The name entered Christian tradition through Saint Ambrose (c. 339–397), a 4th-century theologian and Bishop of Milan, who was renowned for his opposition to Arianism and his influence on church doctrine. Cultural and Linguistic Context In the Dutch-speaking world, Ambroos is the native form of the name, used alongside the Latinate Ambrosius in religious contexts. The diminutive Broos is also recorded in Flemish regions. While never widespread, the name has maintained a presence in the province of West Flanders, particularly in Tielt and surrounding municipalities. The Dutch pronunciation stresses the first syllable: AHM-brohs. Historical Significance The name's association with Saint Ambrose — a Doctor of the Church and author of hymns such as "Veni redemptor gentium" — gave it liturgical weight. During the medieval period, the name was occasionally given in Dutch-monasteries and towns that venerated the saint. In modern usage, Ambroos is rare but attests to the continuity of traditional Christian names in the Low Countries. Related Names Corresponding forms in other languages include Ambroise (French), Ambrogio (Italian), and Ambrosios (Greek). The English Ambrose shares direct lineage via Late Latin. Meaning: immortal (from Greek ambrotos) Origin: Greek, via Latin Ambrosius Name Type: Given name (masculine) Usage Region: Especially West Flanders (Belgium), also Netherlands