This verb refers to call someone with the word "ci" in Esperanto (an informal word which has fallen out of use but can still be used in translation or when required to convey informal meaning - similar to "thou" in English).
Conjugation of cii
Mi
Mi
Mi
Present tense
cias
I call informally
estas cianta
I am calling informally
estas ciata
I am being called informally
Past tense
ciis
I called informally
estas ciinta
I have called informally
estas ciita
I was being called informally
Future tense
cios
I will call informally
estas cionta
I will be calling informally
estas ciota
I am to be called informally
Conditional mood
cius
I would call informally
estas ciunta
I would be calling informally
estas ciuta
I am to potentially be called informally
Vi
Jussive / command
ciu
call informally
Examples of cii
Example in Esperanto
Translation in English
Mi ne volas cii vin, sinjoro Esperanto, sed vi petis min.
I don't want to call you informally, Mister Esperanto, but you asked me.