The affix kan comes in the sense of 'what occurs there' after karṇa and lalāṭa , the word denoting 'an ornament'. ,
This debars यत् 4.3.55. Thus कर्णिका 'an ear-ring', ललाटिका ॥
Why do we say 'denoting an ornament'? Observe कर्ण्यम् 'what is in the ear', ललाट्यम् ॥,