"official distributor of alms on behalf of another," c. 1300 (mid-13c. as a surname), from Old French almosnier "alms-giver" (12c.; Modern French aumônier), from Vulgar Latin *almosinarius, from Late Latin elemosinarius (adj.) "connected with alms," from eleemosyna "alms" (see alms). OED notes, "the Renascence brought up a number of artificial spellings ...."
word-forming element making nouns meaning "place for, art of, condition of, quantity of," from Middle English -erie, from Latin -arius (see -ary). Also sometimes in modern colloquial use "the collectivity of" or "an example of."
<a href="https://www.etymonline.com/word/almonry">Etymology of almonry by etymonline</a>
Harper, D. (n.d.). Etymology of almonry. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/almonry