Denshi Jisho — Online Japanese dictionary

せめぐ 1: to be mutually bitter; to argue together; to quarrel;
2: to resent and bemoan
Godan verb with gu ending 
ぎ合い せめぎあい conflict; fighting each other
Noun 
ぎ合う せめぎあう to fight each other
Godan verb with u ending 
兄弟牆に けいていかきにせめぐ sibling rivalry; quarrel among friends
Expression, Godan verb with gu ending 

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