TSUMUGU · TOCFL 3 (est.) · 詞
原來
ㄩㄢˊ ㄌㄞˊ · yuánlái
adverb — originally; formerly; so that's how it is (exclamatory realization)
字源 FORM — what the parts do
原original; source; plain (原始的原)yuán厂 (cliff/overhang) at top; 泉 (spring/water source) inside — a spring emerging from a cliff; extended to: source, origin, the original state
來to come (往來的來)lái
原來，原始的原，往來的來。
故事 STORY — a scene to remember it by
山崖下的泉水（原，厂＋泉）一直在那裡流著（來）——原來如此，本來就是這樣。
The spring (原, cliff 厂 over water source 泉) has been flowing from the same spot all along (來) — 原來: so that is how it always was.
字源記憶法