mina
/ˈmina/ · B1 · noun · f
mine
⛏️✏️ mina = mine: same word, same root; also the mine inside a pencil (its lead)
Spanish mina and English mine both come from French mine, likely of Celtic origin. Miners dig graphite out of a mina, and that graphite becomes the mina of your pencil. The explosive sense is shared with English too.