A.T. Robertson Commentary 1 Thessalonians 3:12

"and the Lord make you to increase and abound in love one toward another, and toward all men, even as we also [do] toward you;" — 1 Thessalonians 3:12 (ASV)

The Lord (ο Κυριος). The Lord Jesus. Paul prays to Christ.

Make you to increase (υμας πλεονασα). First aorist active optative (wish for future) of πλεοναζω, late verb from πλεον (more),

to superabound .

And abound (περισσευσα). First aorist active optative (wish for future) of περισσευω from περισσος, old verb, to be over (common in N.T.). It is hard to see much difference between the two verbs.