耒

lěi plough (ancient wooden plough)

Component (a building block) — not the same thing as a radical or a sound component. · 6strokes

耒 free
耒 left — On the left side (耕, 耘, 耗) the final 捺 shortens into a dot so it leaves room on the right.

Kangxi radical no.127 · 6strokes — The 214 Kangxi radicals

Filed under it in a dictionary. That is a lookup convention — it does not mean it is the only part the character is built from.