اندفع
1.
is quasi-pass. of دَفَعَهُ; (S, K, TA;) and
تدفّع is quasi-pass. of دفّعهُ; and
تدافع is quasi-pass. of دافعهُ: but all three are used in the same sense: see 6: (TA:) [the first, however, primarily signifies He, or it, became impelled, pushed, thrust, or driven; and particularly, so as to be removed from his, or its, place; became propelled; became repelled; became impelled, pushed, thrust, or driven, away, or back, or onwards; became put away, or removed from its place; as is implied in the S and K and TA: whereas the second, properly, has an intensive signification: and the third properly denotes the acting of two or more persons or things, or of several parts or portions of a thing, against, or upon, one another; as is shown by exs. and explanations above: though the second and third are often used in the primary sense of the first.]
2.
[Hence,] اندفع also signifies (assumed tropical:) He went away into the country, or land, in any manner: (Lth:) or, said of a horse [&c.], (tropical:) he [or it] went quickly or swiftly (S, K, TA) [as though impelled or propelled; pressed, or pushed, on, or forward; rushed; launched, or broke, forth; it poured forth with vehemence, as though impelled: see 1, which has a similar meaning, particularly in the phrases دَفَعَ المَاءُ, and السَّيْلُ, and دَفَعَ فِى عَدْوِهِ, &c.].
3.
اندفع فِى, الحَدِيثِ, (S, K, TA,) and فِى الإِنْشَادِ, (TA,) (tropical:) He pushed on, or pressed on, in discourse, and in reciting poetry; or entered thereinto; or launched forth, or out, thereinto; or was large, or copious, or profuse, therein; or dilated therein; or began it, commenced it, or entered upon it; synonym أَفَاضَ فِيهِ. (K, TA.) And اندفع فِى الضَّحِكِ [He broke forth into laughing]. (JK in article بوق.)
4.
[اندفع فِى
الطَّعَامِ (assumed tropical:) He fell to eating of the food; or applied himself eagerly to it.]