Definition of "sympathised"

To those who have sympathised in the energy and daring of earlier life, it seems marvellous to hear him mentioned in the gentle language of one of Madame de Sevigné's letters, where he is spoken of as a peculiarly mild and gentlemanlike old man, especially kind to the young, whose society he seemed to enjoy.

1834, L[etitia] E[lizabeth] L[andon], chapter X, in Francesca Carrara. […], volume I, London: Richard Bentley, […], (successor to Henry Colburn), page 110