Noah Webster's Dictionary (p. pr. & vb. n.) of Slave.

Multi-Version Concordance Slaving (1 Occurrence) Luke 15:29 "'All these years,' replied the son, 'I have been slaving for you, and I have never at any time disobeyed any of your orders, and yet you have never given me so much as a kid, for me to enjoy myself with my friends; (WEY NIV)