responderunt
responderunt is a Latin form of respondeo, meaning “answer, reply”. It is the 3rd person plural perfect active indicative.
Found 50 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 4.16.3: Ad quos cum Caesar nuntios misisset, qui postularent eos qui sibi Galliae bellum intulissent sibi dederent, responderunt:
Pliny the Younger, Epistulae 7.1.5: Postea cum vicensimo valetudinis die balineo praepararer, mussantesque medicos repente vidissem, causam requisivi. Responderunt posse me tuto lavari, non tamen omnino sine aliqua suspicione.
All forms of respondeo (conjugation table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.