rec·to 
(rĕktō)
(rĕktō)n. pl. rec·tos
A right-hand page of a book or the front side of a leaf, on the other side of the verso.
[From Latin (foliō) rēctō, (the leaf) being right, ablative of rēctus, straight, right; see reg- in the Appendix of Indo-European roots.]