revengeful
From LSJ
Ἐλεεινότατόν μοι φαίνετ' ἀτυχία φίλου → Miseria amici mihi suprema est miseria → Am meisten Mitleid, scheint's, heischt eines Freundes Leid
English > Greek (Woodhouse)
adjective
unforgetting: P. and V. μνήμων; see implacable.
be revengeful, v.: Ar. and P. μνησικακεῖν.