Godan verb with 'ru' ending, Intransitive verb
to be about to get on (a train, bus, etc.); to be about to board
乗りかかった船ということでやっていく所存です。I've come this far, so I'll keep going. to start (doing); to begin; to set about
to get on top of; to lean over
Also written 乗り掛かる【のりかかる】