παροξύνειν

From LSJ

ἀκμὴ οὐδὲ ἔχει γενέσεως ὑπόστασιν καθ' ἑαυτήν → the culmination has no power of originating by itself

Source

Greek > English (Woodhouse Verbs Reversed)

(see also παροξύνω): aggravate, anger, embitter, encourage, inflame, make angry

Lexicon Thucydideum

incitare, irritare, to arouse, provoke, 1.67.5, 1.84.2. 6.88.10.
PASS. 5.99.1, 6.56.2.