arthavān pūrvadṛṣṭaścet tasyaitāvān kṣaṇaḥ kutaḥ / dvistrirvānupalabdho hi nārthavān sampratīyate //
"If [you say] that the first-perceived [word] had meaning, then whence [comes] its duration for such a long time? For [a word] is not understood as meaningful until it has been perceived two or three times."