animosity

The word 'animosity' traces its lineage to the Latin animus, meaning "mind," "spirit," or "passion." This root evolved into the Late Latin term animositas, signifying "boldness" or "high spirit." The original sense in English, first recorded in the early 15th century, was "spiritedness" or "courage." However, the passionate intensity implied by the root gradually took a negative turn. By the 17th century, the meaning had shifted specifically to denote a spirited feeling of hostility or ill will, reflecting how a powerful inner spirit (animus) can manifest as intense opposition.

Structure: anim (mind, spirit) + osity (state or condition of) - anim: From Latin animus (mind, spirit, passion, courage). Functions as the core root conveying the sense of "spirit" or "passion." - osity: A suffix from Latin -ositas, forming nouns indicating a state or condition, often from adjectives ending in -osus (full of). In this word, it forms a noun from the implied adjective animosus (full of spirit/passion).