וַיָּרִ֜יבוּ רֹעֵ֣י גְרָ֗ר עִם־רֹעֵ֥י יִצְחָ֛ק לֵאמֹ֖ר לָ֣נוּ הַמָּ֑יִם וַיִּקְרָ֤א שֵֽׁם־הַבְּאֵר֙ עֵ֔שֶׂק כִּ֥י הִֽתְעַשְּׂק֖וּ עִמּֽוֹ׃
And the herdmen of Gerar strove with Isaac’s herdmen, saying: ‘The water is ours.’ And he called the name of the well Esek; because they contended with him.
Targum Jonathan on Genesis
And the shepherds of Gerar contended with Izhak's shepherds, saying, The water is ours. And it was the will of Heaven, and it dried. But when they returned to Izhak, it flowed. And he called the name of the well (Esek) Contention, because (etheseku) they had quarrelled with him on account of it.