While the FEW includes the sense of 'pastourelle, bucolic song' as a derivation of pastor (7,759a), the DMLBS suggests that this particular sense derives from the adjectival form pastoralis, likely as a result of the abbreviated locution carmen or poema pastorale. We follow the DMLBS in considering the substantive as a derivative of the adjective and include it under pasturel¹, while pasturel² represents a diminutive form of pastor.