Pāṇini sūtras

When a Taddhita affix is elided by using the word lup, then the gender and number (of the derivative word) agree with those of the original word.

German Wenn der Schwund eines Suffixes durch lup bezeichnet wird, richten sich Geschlecht und Zahl (des scheinbar abgeleiteten Wortes) nach dem Worte, zu dem es in Beziehung steht. (51)

1. lupiलुपि

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   lल्	lupलुप्	lupiलुपि	lupलुप्	lupलुप् + plus iइ

2. yukta+vatयुक्त+वत्

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   yय्	yujयुज्	yuktaयुक्त	compound	yuktयुक्त् + plus aअ
   vव्	vatवत्	vatवत्	equally	vatवत्

3. vyakti+vacaneव्यक्ति+वचने

   Part	Lexeme	Sandhi form	Meaning	Stem + termination
   vव्	vyaktiव्यक्ति	vyaktiव्यक्ति	gender	vyaktव्यक्त् + plus iइ
   vव्	vacanaवचन	vacaneवचने	number	vacanवचन् + plus eए