Algy. Algernon.
alt. Alternate; Altitude; Alto.
A.M., Artium Magister=Master of Arts; Ante meridiem=Before noon; Anno mundi=In the year of the world; Annus mirabilis=The wonderful year (1666); Ave Maria=Hail Mary.
Am., Amer. America or American.
A.M.A. American Missionary Association.
amt. Amount.
an., anno=In the year; anonymous; answer; ante=before.
anal. Analysis; Analogy.
anat. Anatomy or Anatomical.
anc. Ancient, Anciently.