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διαβάλλειν τινά

Γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ -> The fool laughs even when there's nothing to laugh at
Menander

Greek > English (Woodhouse Phrases Reversed)

διαβάλλειν τινά = bring a person into bad odour with, bring one into odium with

⇢ Look up "διαβάλλειν τινά" on Google | LSJ full text search (Translation based on the reversal of Woodhouse's English to Ancient Greek dictionary)