TSUMUGU · TOCFL B1 (est.) · 字
愉
愉 ＝ 忄 ＋ 俞
ㄩˊ · yú
adj — pleased, cheerful, glad
字源 FORM — what the parts do
忄義the heart
俞聲yú — gives the sounda dugout boat being hollowed — the same donor under 輸
The heart (忄) at ease — gladness. 俞 yú carries the sound, exact, the dugout-boat donor that also rides under 輸 and 愈. The light heart: 愉快, 愉悅.
故事 STORY — a scene to remember it by
心（忄）放鬆，整個人輕了——愉。
The heart (忄) eases, and the whole person lightens — glad.
字源記憶法
意 · Meanings
(本義)愉快— pleased, cheerful常用
→愉悅— delight, joy
(本義) original meaning · → ⇒ each arrow = one more step of extension
關 · Related
俞yúthe phonetic alone — 愉 adds the heart on the left愈＝ ＋ 心yùthe same donor — a heart 心 below where 愉 takes it on the left