mammary

The word 'mammary' is a direct anatomical term derived from the Latin mamma, meaning "breast" or "teat." This Latin root is itself believed to be a reduplication from the Proto-Indo-European infantile nursery word mā-mā, one of the most basic and universal sounds associated with feeding and motherhood. The suffix '-ary', of Latin origin, is added to form an adjective meaning "of or relating to." Thus, the literal construction "pertaining to the breast" has been preserved with precise scientific meaning, specifically referring to the glands and structures associated with lactation.

Structure: mamm (breast) + ary (adjective suffix) 'mamm' is from Latin mamma (breast, teat). '-ary' is a suffix of Latin origin (-arius) used to form adjectives meaning "pertaining to" or "connected with."