are the greek words for slave and the word for ‘to work;’ related?

Yes.In modern greek “douleia”(stress on the “a”) means work whereas “douleia” (stress on the “ei”) means slavery.

Yes and no. The word slave in greek is ‘knaudo’ and it’s a composite of two words ‘knaux’ (work) and ‘doun’ (person). So the word slave in greek means ‘working person’. But the literal meaning of the word also implies the regular connotative meaning of the word, like the fact that slaves are owned and that they are not paid and so on.

The rendering of a Greek word meaning “bodies.” The Hebrew and Greek words for slave are usually rendered simply “servant, …