resort to கையாள் kaiyāḷ (kaiyaaḷu) (1 tr) make use of s.t. to gain an advantage, often when everything else has failed; return back to the use of; fall back on
Usage:
கெட்ட பழக்கங்களைக் கையாண்டான் keṭṭa paḻakkaṅkaḷaik kaiyāṇṭāṉ keṭṭa paḻakkangaḷe kaiyaaṇḍaan He resorted to bad habits.