Should it not be emojus and emojii?
Emojium and emojia, maybe?
@the_etrain no because emoji is japanese, not latin. you'd have to use whatever the plural form in japanese is. unfortunately i am not the person to ask, but i bet you could ask jeeves.
(alas, does jeeves exist anymore?? or did he disappear into the ether?)
@the_etrain The plurals of (many) masculine Latin words ending in -us end in -i not -ii. (-ius can become -ii.)