[のぼりつめる, noboritsumeru](v1, vi) (1) to go to the top; to climb to the top; to ascend to the top; to reach the summit (e.g. of a mountain); (2) to be engrossed in; to be very enthusiastic about; to be infatuated with[Add to Longdo]
[ふける, fukeru](v5r, vi) (1) to indulge in; to give oneself up to; to be obsessed by; (aux-v) (2) (See 読み耽ける) to be engrossed in; to be lost in; to be absorbed in; (P)[Add to Longdo]