1 To join side to side; to border; hence, to sail along the coast or side of. [Obs.] “So much [of Lapland] as accosts the sea.” Fuller.
2 To approach; to make up to. [Archaic] Shak.
3 To speak to first; to address; to greet. “Him, Satan thus accosts.” Milton.
To adjoin; to lie alongside. [Obs.] “The shores which to the sea accost.” Spenser.
Address; greeting. [R.] J. Morley.