It (a thing) became wide. (S.) And تفشّت القَرْحَةُThe ulcer, or sore, became wide, (K, TA,) and blistered, and corrupt, by reason of third purulent matter. (TA.)
2.
تَفَشَّاهُمْ, and تفشّى بِهِمْ, said of a disease, It became much among them, (K, TA,) and spread: or, as in the T, became common, or general, or universal, among them: AZ mentions the verb as with hemz. (TA. [See 5 in article فشأ.])
3.
And تفشّى الحِبْرُفِى الكَاغَدِThe ink infiltrated into the paper upon which one had written, it (the paper) being thin. (TA.)