piñón

pine nut; Araucaria nut; pine sapling

From piña (“pinecone”) + -ón (diminutive suffix).

pinion (small gear or spindle); sprocket (toothed wheel that enmeshes with a chain)

Etymology tree French peigne French -on French pignonbor. Spanish piñón Borrowed from French pignon.

pinion (outer part of a bird's wing)

From Latin pinna (“feather”) + -ón (“augmentative suffix”).