I want to know the answer to the following question:
What other things do the two languages seem to have in common ?
All the background I'm provided with is that "The characteristically Greek representation of word-initial laryngeals by prothetic vowels is shared, for one, by the Armenian language, which also seems to share some other phonological and morphological peculiarities of Greek; this has led some linguists to propose a hypothetical closer relationship between Greek and Armenian, although evidence remains scant.". Is that enough to answer the question?
Answer: yes