And if someone wants to say "The left-handed man" would it be correct to say "Ο αριστερόχειρας άντρας" ?

can you use this for left-wing as well?

please add άνδρας with delta, thanks!

There’s quite an interesting etymology behind this word.

there is no "right" word in this or next lessons, why is that?

For a person αριστερός/ή means a person votes for left-wing parties.

How about: "Ο άνδρας στο αριστερό" (The man on the left)?

this is something strange...

The English phrase "the lefthand man" should be acceptable. Lefthand means 'on the left' (as opposed to left-handed).