TSUMUGU · B2 (est.) · 字
溉
溉 ＝ 氵 ＋ 既
ㄍㄞˋ · gài
verb — to water, irrigate
字源 FORM — what the parts do
氵義water
{g,j}Ijì → gài — the {g,j} crossing
Water (氵) with 既 jì, a man who has turned from the bowl, the meal already finished. Lead the water out to soak the dry fields until they have had their fill — to irrigate (灌溉, 溉田). The sound slid from jì to gài. The same 既 sits in 概 (general), there with wood 木.
故事 STORY — a scene to remember it by
把水（氵）引進乾田，一直澆到田喝足（既）為止。
Lead the water (氵) into the dry field and soak it until the ground has had its fill (既).
字源記憶法
意 · Meanings
(本義)灌溉、溉田— to irrigate, water常用
→洗溉— to rinse, wash
(本義) original meaning · → ⇒ each arrow = one more step of extension