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Thereupon Diarmuid took his arms and his armor, and put his tapering finger into the silken string of the Gae Derg, and aimed a triumphant cast at the youth of the green mantle that was in the forefront of the host, so that he slew him with that cast; he made also a second cast at the second man, and slew him; and the third man he slew likewise. Then, since it is not usual for defence to be made after the fall of lords, when the strangers saw that their chiefs and their lords were fallen, they suffered defeat, and betook themselves to utter flight; and Diarmuid pursued them, violently scattering them and slaughtering them, so that unless some one fled over the tops of the forests, or under the green earth, or under the water, there escaped not even a messenger nor a man to tell tidings. The gloom of death and of instant destruction was executed upon every one of them except Deirdriu of Dub Sliab, that is, the woman messenger of Finn mac Cumaill, who went wheeling and hovering around whilst Diarmuid was making slaughter of the strangers.

- The Pursuit of Diarmud and Grainne (https://www.maryjones.us/ctexts/diarmuid.html)