proinde

(not-comparable) so, for this reason, hence, therefore (sums up the previous argumentation)
(not-comparable) (so) as; in the same manner, accordingly
(ironic, not-comparable, often) as if

άρα

αναλόγως

επομένως

Univerbation of prō + inde.

Practice speaking and memorizing "proinde" and many other words and sentences in Latin.