bordonear

A niche, largely archaic verb with two unrelated senses: to strum or play the bordón (the low drone string on a guitar or similar instrument), and, older still, to strike someone with a bordón (a pilgrim's or traveler's staff). Rarely used today outside specialized music writing about traditional guitar technique.

• El guitarrista bordoneaba suavemente antes de empezar la canción. — The guitarist gently strummed the drone strings before starting the song.
• En el relato medieval, el viajero bordonea al ladrón con su bastón. — In the medieval tale, the traveler strikes the thief with his staff.
• Pocos músicos jóvenes usan hoy el verbo bordonear. — Few young musicians use the verb bordonear today.

This is specialized/archaic vocabulary — most learners will only meet it, if at all, in writing about traditional guitar or flamenco technique, not in everyday conversation.