The affix īkak (īka) comes in the sense of 'like this' after 1. karka and 2. lohita,
Thus कार्कीकः 'like कर्क or white horse'. लौहिताकः स्फटिकः 'a crystal though not itself red, appears red, owing to the reflection of some thing behind it'.,
कर्क-लोहिताद् ईकक्
Adhyāya 5 · Pāda 3 · Rule 110