'anga'-sabde amsa kahe sastra-paramana
angera avayava 'upanga'-vyakhyana
anga-sabde—by the word anga, or limb; amsa—part; kahe—says; sastra—of the scriptures; paramana—the evidence; angera—of the limb; avayava—the constituent part; upanga-vyakhyana—the exposition of the word upanga.
According to the evidence of the revealed scriptures, a bodily limb [anga] is also called a part [amsa], and a part of a limb is called a partial part [upanga].
Link to this page: https://prabhupadabooks.com/cc/adi/3/68