TSUMUGU · TOCFL 1 (est.) · 字
孩
孩 ＝ 子 ＋ 亥
ㄏㄞˊ · hái
noun — child
字源 FORM — what the parts do
亥聲hài — gives the soundthe twelfth branch — the boar at the cycle's end
Thài → hái — tone only
A child (子), 亥 hài lending the sound one tone off. The first word is the baby's gurgling laugh; the laugh's word settled on the one who laughs it: 孩子、小孩.
故事 STORY — a scene to remember it by
懷裡的嬰兒（子）忽然咯咯笑出聲——滿屋子的人都轉過頭來。
The baby (子) in someone's arms breaks into a gurgle — every head in the room turns.
字源記憶法
意 · Meanings
(本義)小兒笑— a baby's gurgling laugh — the old word
→孩子、小孩— child常用
(本義) original meaning · → ⇒ each arrow = one more step of extension