The act of branching out; a division into branches, or the system of branches itself.
From em- + branch + -ment (noun-forming suffix from -mentum). Branch comes from Old French branche, derived from Late Latin branca. The em- intensifies the sense of branching or spreading.
In botany and tree science, you actually do see 'embranchment' used to describe the whole pattern of how a tree's branches divide and spread. It's a technical term that survives because botanists needed the precise word!
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