1) Altercate 2) Argue 3) Contend 4) Debate 5) Dispute 6) Fence 7) Quarrel 8) Scrap 9) To argue without any aim 10) To be evidence of something 11) To disagree 12) To dispute 13) To weary with arguing Found on https://www.crosswordclues.com/clue/argufy
Ar'gu·fy transitive verb & i. [ Argue + -fy .] 1. To argue pertinaciously. [ Colloq.] Halliwell. 2. To signify. [ Colloq.] Found on http://www.encyclo.co.uk/webster/A/119