Extended Strong's Greek Lexicon (Abbott-Smith based)
to sit near/serve
Usage: προσεδρεύω (πρόσεδρος, sitting near), [in LXX: 1Ma.11:40 * ;] __1. to sit near. __2. to attend regularly: with dative, 1Co.9:13, Rec. (see: παρεδρεύω).† παρ-εδρεύω [in LXX: Pro.1:21 8:3 * ;] to sit constantly beside, attend constantly (cf. MM, xix): τ. θυσιαστηρίω, 1Co.9:13.† (AS)