deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
The word /jJApaka means "implication" or "teaching by example".
E.g., according to rule GamohrasvAd..., a pada-final N ण् must double before a vowel. But sutra ikoyaNaci does NOT have that doubling; according to GamohrasvAd... it should be **iko yaNN aci इको यण्णचि.
Does that show that /pANini screwed up and failed to apply his own rule?
Not so. The doubling in ikoyaNaci is omitted on purpose, to show by example that rule GamohrasvAd... is optional in the case of N ण्.