(p. 427) ṭhaka2 expressing a rapping noise as of a stick on the floor. ঠকঠক, ঠকাঠক int. expressing this noise made repeatedly and quickly. ঠকঠকানো v. to make this noise repeatedly and quickly; to shiver violently (in cold, fear, anger etc.). ঠকঠকানি n. a spell of rapping noise made repeatedly and quickly; a spell of violent shiver. 5)