صفع1 صَفَعَهُ, aor. ـَ (O, Msb, K,) inf. n. صَفْعٌ, (S, * O, Msb, TA,) accord. to Lth, (O, TA,) He struck him with his fist, not vehemently, on the back of his neck: (O, K, TA:) or, (O, K,) accord. to Az (O, Msb, TA) and others, (Msb,) he struck him [i. e. slapped him] with his expanded hand (O, Msb, K, TA) on the back of his neck, or on his body; not with the fist: (O, Msb, TA:) or it is post-classical: (S, K:) [but Fei says,] the assertion that it is post-classical is not to be regarded: (Msb:) Az adds, IDrd says that it is from ↓ صَوْفَعَةٌ, (O, TA,) which signifies the top, or uppermost part, of the [cap called] كُمَّة, and of the turban: (O, K, TA:) or this is a mistranscription, and is correctly with ق: (K, TA:) [Sgh says,] this which Az mentions, [as] on the authority of IDrd, I have not found in the JM; and it is correctly with ق. (O.) صَفْعَةٌ A single act of striking [or slapping] with the expanded hand upon the back of the neck, or upon the body. (Msb.) صَفْعَانُ or صَفْعَانٌ (accord. to different copies of the S and K) A man who is struck [or slapped] in the manner expl. above in the first paragraph; (S, Msb, K;) as also ↓ مَصْفَعَانِىٌّ. (O, K.) صَوْفَعَةٌ: see the first paragraph of this art. مَصْفَعَانِىٌّ: see صَفْعَانُ.