Agistment is primarily a legal and agricultural term that rarely appears in
lyric poetry but is valuable for understanding the economic substructure of the pastoral world. Students studying the pastoral tradition should understand that the idealized landscapes of
Spenser,
Sidney, and their successors were actually governed by complex legal arrangements like agistment, pannage, and herbage — arrangements that the pastoral mode typically conceals beneath its idealizing surface. The word belongs to a cluster of Anglo-French legal terms (alongside estovers, turbary, and herbage) that entered English through the Norman administrative system. For students studying
enclosure poetry or Crabbe's anti-pastoral verse, agistment represents the commercialization of pastoral relationships —
the moment when customary access to grazing land was replaced by contractual rental. Compare with "pasturage" and "herbage" for related concepts.