The compound "team-first" is a modern formation built from two deeply rooted English words. "Team" originates from the Old English tēam, which referred to a family or a set of draft animals harnessed together, a concept inherently about collective effort. "First" stems from the Old English superlative fyrst, related to "fore," meaning ahead of all others. The logic of the compound is transparent and literal: it directly combines the concept of a cohesive group ("team") with the concept of paramount importance ("first"). This creates an adjective and noun describing a philosophy where the collective's success is placed ahead of and above individual achievement, mirroring the cooperative function of a team of animals or players working toward a single goal.

Structure: team (group) + first (primary) - team: From Old English tēam (family, lineage, offspring; a group of draft animals). In this compound, it functions as the primary noun, denoting a group working together. - first: From Old English fyrst, first (foremost, earliest, most important). In this compound, it functions as an adjective/adverb, indicating priority or primary importance.