In the room of a short vowel of the Reduplicate of the the roots tuj etc., a long is substituted.,
There is no list of तुजादि verbs given any where. The word आदि in तुजादि therefore should be construed as \verbs like tuj\. So that wherever we may find a word having a long vowel in the Reduplicate, we should consider it a valid form. Thus तूतुजानः (तुज् + कानच् 3.2.106 = तूतुजानः Rig. I. 3. 6). मामहानः, अनड्वान् दाधार, स्वधां मीमाय, स तूताव ॥ This lengthening only takes place in the Vedas before some special affixes, and not every where or in secular literature. As तुतोज शबलान् हरीन् ॥,