傾斜
けいしゃ · keisha · JLPT N1 · noun
slope
斜 — dipper 斗 + give 余 (phonetic)
斜 is a phonosemantic compound. The right side 斗 (a ladle or dipper) gives the meaning, since pouring from a dipper tilts it sideways. The left side 余 supplies the sound. From 'tilted ladle' the meaning broadened to 'slanting, oblique, askew.'