Obs. rare. Also 5 soul-. [Of obscure origin. Cf. WFlem. sowelen, suwelen (De Bo), and SOLE v.3, SOLL v., SOLWE v.] trans. To make foul or dirty; to soil. Hence † Sowling vbl. sb.
c. 1440. Promp. Parv., 466/1. Sowlynge, or solwynge,… maculacio.
a. 1450. Langland’s P. Pl., B. XIV. 2 (MS. Bodl. 814). Þouȝ hit [a suit] be soulid and foul y slepe þerynne on nyȝtis. Ibid., 13. Þat y ne soulid hit wiþ siȝtte or sum ydil speche.
