This is one of the names of Garuḍa the mount of Viṣṇu. It is difficult to say whether he was a descendant of Tṛkṣi, a prince of an earlier generation.
It is also the name of a sage who is supposed to have been taught by goddess Sarasvatī herself once (Mahābhārata, Vanaparva 186).
A king, Dundhumāra by name, accidentally killed the son of the sage Tārkṣya. When he apologised profusely to the sage, the latter called his son by name and he rose up alive! The sage explained that his hermitage as also himself had acquired that power due to good and pure conduct (vide Mahābhārata, Vanaparva, 184).