(literary) the manner with which one acts in the presence of another person or persons, especially in a first encounter / (rare) the surroundings of a place / (archaic) arrival or accessibility by water

at first sight, at first

at first, at first sight, at first glance, on first impression

(now very rare) plural of abord

the surroundings

third-person singular past historic of aborder

near, close to

Not overly costly; affordable / approachable / accessible / Said of a boat that is easy to attack

the assault on a ship / collision, allision

plural of abordable