涼
リョウ, すず.しい, すず.む, すず.やか, うす.い, ひや.す, まことに, りょ

refreshing, nice and cool

JLPT2 G7 S11 F1783

As per 京# (heights) + 水 water → *cool*, clean water flowing continuously on high ground → *refreshing*.

[Full Kanji Etymology List]