deriv SD cv (1237) ashtadhyayi.com hei.de L 1237 ETT STT a 5.1.115 ALPH OLDHOMEPAGE NEWHOMEPAGE

tena tulyaG kriyA ced vatiH

तेन तुल्यं क्रिया चेद्वतिः ONPANINI 51115

Add /vati to mean "action like him".

Careful. This "vati" might sound like "vatup", the variant of /matup in **pakSavat- पक्षवत्.

As this /vati is a /svarAdi, it forms indeclinables.

brAhmaNavad adhIte
ब्राह्मणवदधीते
"he studies like a brahmin"

Why do we say "action"?

Because we cannot use /vati to express similarity of quality —

pitrA tulyas sthUlaH
पित्रा तुल्यः स्थूलः
/ pitrA saha sthUlaH
पित्रा सह स्थूलः
"as big as his dad"