His pen name, which he adopted as a writer and which came into general use in 1910, was Arcadius Avellanus. His parents were Janus (or János) and Júlia. He came from a well-to-do family, as his parents had him educated at home until the age of 13, when he entered the Franciscan high school. Until then, he spoke only Latin; he learned Hungarian at school. He entered the order in 1869. He was ordained a priest on April 25, 1874. He spoke Latin, Hungarian, English, Ancient Greek, and Czech at a native level and understood several other languages. After his ordination, he served as a preacher and teacher; then, in 1877, the order decided that St. Bonaventure College (later a university) in the United States, which had just been founded, needed young and energetic teachers, so he was sent there as well. He arrived in the United States in 1878, and at that time, in addition to teaching Latin, he was tasked with establishing the school’s library. In 1882, the then-rector and superior general died, and he was appointed to that position. His leadership proved unsuccessful; discipline at the monastery had completely broken down, and he eventually left the priesthood following an order-wide inspection. On October 27, 1886, he married a woman named Miss Edith E. Clare in Newark, NJ. The marriage ended in divorce sometime before 1891. To promote the use of Latin, he translated numerous books for young people, such as Stephenson’s *Treasure Island*. The problem with these translations is that he was completely unconcerned with the fact that modern Latin expressions might already have been coined, so he used many expressions of his own invention instead. An editor or proofreader could have corrected this, but he refused their assistance. Just as he rejected the Hungarian language reform, he published a journal in Hazelton titled *Önállás* (*Independence*), in which he used only the grammar and vocabulary from before the language reform, and he published in the same manner in Hungarian newspapers as well. He died in poverty at a boarding house four years later. He was completely forgotten for a long time, but in the last 10–15 years he has been mentioned at numerous conferences on the Latin language; in fact, he is experiencing a sort of renaissance, with recognition of his ambitious goals, including a pedagogical revolution in the classics, the reform of Latin orthography, the re-publication of all classical Latin texts, the organization of an international Latin society, and the acceptance of Latin as a universal and international language.

The Reprobation of Yisróel. Allegany, 1886. (új kiad. Buffalo, 1888) - Thoughts Concerning an International Latin Academy. Philadelphia, 1901(?) - A zsidók a zsinagógában és otthon. Washington, D.C., 1907. - What our Schoolmen do not Know. New York, 1916(?) - Impressio specialis proloquii ad editionem latinam Robinsonis Crusoei Danielis De Foe. Brooklyn, 1928. - Palaestra. 3. kiad. New York, é.n. - New York-ban (N.Y.) az első m-angol hetilap, a Magyar Amerika 1879. VI. 15-IX(?): társszerk-je, 1887: a Józan Ész (Röpirat 2 részben a zsarnokság és babona ellen) havi folyóir., 1890-97: az Önállás (Hazleton), 1894: a Praeco Latinus (Latin Herald), 1906: a clevelandi (Oh.) Magyar Napilap szerk-je. - Álneve: Arcadius Avellanus (1910 után)