means To produce musical sounds with the voice, shaping pitch and melody from breath and tone.

from From Old English 'singan,' tracing back to Proto-Germanic '*singwanan' — sibling to German 'singen' and Dutch 'zingen.' Its deeper Indo-European root may be tied to a sense of 'reciting' or 'making sound,' and curiously the same family possibly gave us 'singe' — though that's a separate path. The word has stayed remarkably steady through a thousand years of humans doing exactly this: vibrating a little meat into music.