lacrimal

The word 'lacrimal' is a direct anatomical borrowing from Medieval Latin lacrimalis, which itself derives from the classical Latin noun lacrima, meaning "a tear". This Latin term is believed to have evolved from the Proto-Indo-European root dakru-, which also gave rise to the Greek dákry and the Old English tēar, the direct ancestor of the modern English "tear". The suffix -alis was a standard Latin adjectival ending, and its combination with lacrima created a term literally meaning "pertaining to tears". In modern medical and anatomical usage, this literal sense is preserved, precisely describing structures associated with the production and drainage of tears.

Structure: lacrim (tear) + al (adjective suffix) - lacrim: From Latin lacrima, meaning "tear". Its functional role is the core semantic root. - al: A suffix of Latin origin (-alis) used to form adjectives meaning "of, relating to, or characterized by".