Etymology of the English word allantoic
the English word allantoic
derived from the English word allantois
derived from the Greek word eidos, εἶδος (form, likeness, appearance, resemblance; a view; form )
derived from the Proto-Indo-European root *weid-
derived from the Greek word allas, ἀλλᾶς (sausage)
using the English suffix -ic