Pompeius has travelled to see the philosopher Posidonius, but he is indisposed, and Pompeius tells him of his disappointment at not being able to hear him speak.
At ille (Posidonius), "Tū vērō," inquit "potēs, nec committam, ut dolor corporis efficiat, ut frūstrā tantus vir ad mē vēnerit."
But Posidonius said "Of course you can. I will not ?commit? that a gammy leg will effect a great man like you having come to see me in vain."
I can't find a decent meaning for committere which fits the context. I would have expected something like 'allow'. What am I doing wrong? Cheers, Phil.