春
シュン, はる, あずま, かす, すの, ひ, わら
springtime, spring (season)
JLPT4 G2 S9 F579
The relevant seal inscription form is 屯# (swelling bud) + an element combining 日 sun/day and 艸 grass/plant → *spring* (← season when buds and other vegetation swell in the sunlight that returns after winter) → *youth*; *sexual desire*.
[Full Kanji Etymology List]