7.1.2 - 7.1.4
SV: झः अन्तः
AV : प्रत्ययादीनाम्
Language Meaning: The letter झ् occurring in a प्रत्यय is converted to अन्त्

Reinterpreted:
झ - vibrate instruction is replaced by अन्त्
original instruction of “vibrating boat” is now to be replaced by “here log below pull”