reñir bedeutet auf Englisch

quarrel [quarrelled, quarrelling, quarrels]▼(to argue strongly, contend, squabble)
verb
[UK: ˈkwɒ.rəl] [US: ˈkwɔː.rəl]The teacher intervened in the quarrel between the two students. = El profesor intervino en la riña entre los dos estudiantes.

row [rowed, rowing, rows]▼(intransitive: to argue noisily)
verb
[UK: raʊ] [US: ˈroʊ]

scold [scolded, scolding, scolds]▼(rebuke)
verb
[UK: skəʊld] [US: skoʊld]I'll scold him. = Le reñiré.

scuffle [scuffled, scuffling, scuffles]▼(to fight or struggle confusedly at close quarters)
verb
[UK: ˈskʌf.l̩] [US: ˈskʌf.l̩]

constrain [constrained, constraining, constrains]▼(to force; to compel; to oblige)
verb
[UK: kən.ˈstreɪn] [US: kən.ˈstreɪn]

constipate [constipated, constipating, constipates]▼(to cause constipation in)
verb
[UK: ˈkɒn.stɪ.peɪt] [US: ˈkɑːn.stə.ˌpet]I am constipated. = Estoy estreñido.