A primitive particle; meaning accession (used as an adverb or conjunction); also or yea; adversatively though -- also, + although, and (furthermore, yet), but, even, + how much less (more, rather than), moreover, with, yea.
II. אַף conjunction denoting addition, especially of something greater, also, yea (so Phoenician, Aramaic , אוֺף אַף,; compare ).
1 very rare in plain prose (in which גַּם is more usual): Genesis 40:16* (*with pronoun, as rather often) Ialso in my dream, Numbers 16:14; Deuteronomy 2:11*; 2:20* 2 Samuel 20:14 (see Dr) 2 Kings 2:14 * Esther 5:12; more frequently in poetry, especially as introducing emphatically a new thought Deuteronomy 33:3, 20, 28; 1 Samuel 2:7; Psalm 16:6; 16:7; 16:9; 18:49; Psalm 65:14 they shout for joy, yea, they sing! 68:9; 68:17; 74:16; 89:28Psalm 1; Proverbs 22:19* 23:28* +; or in more elevated prose style, Leviticus 26:16*; 26:24*; 26:28*; 26:41*; and 25 t. in the impassioned rhetoric of Isa2 (Isaiah 40:24-48:15), e.g. Isaiah 40:24; 41:10, 26; 42:13; 43:7, 19; 46:11 yea, I have spoken, I will also bring it to pass; I have purposed, I will also do it! 48:12, 15. Implying something surprising or unexpected, even, indeed Job 14:3; 15:4*. וְאַף and also Leviticus 26:39-40, 42, 44; Deuteronomy 15:17; Habakkuk 2:15; Psalm 68:19; 1 Chronicles 8:32* = 9:38* 2 Chronicles 12:5* Nehemiah 2:18; 13:15; and even Job 19:4 שָׁגִיתִי וְאַףאָֿמְנָם and even indeed (if) I have erred . . . With הַאַף הֲ, indeed . . .. really . . .. Genesis 18:13, 23 wilt thou indeed sweep away the righteous with the wicked? 18:24; Amos 2:11; Job 34:17; 40:8. In contrast to a preceding thought (expressed or implied) but, nay (imo) Psalm 44:10; 58:3; compare Judges 5:29*.
2 (Equally in prose and poetry) with reference to a preceding sentence, yea, à fortiori, the more so (= how much more! after an affirm. clause; = how much less! after a negative one): 2 Samuel 4:10f. when one told me, Saul is dead . . . I took hold of him and slew him . . . וג הָרְגוּ רְשָׁעִים כִּיאֲֿנָשִׁים ׳אַף à fortiori, how much more (should I do so when wicked men have slain a righteous person, etc.! Ezekiel 14:21 (Ew Hi) 15:5; Proverbs 21:27 (in all these passages כִּי = when) Job 4:19. So וְאַף 1 Samuel 23:3; 2 Kings 5:13 . . . אֵלֶיךָ כִּיאָֿמַר וְאַף and the more (= and how much rather), when he hath said to thee, etc. More commonly in this sense strengthened by כִּי (q. v.), see below
2 in a question, indeed (is it) that . . .. Genesis 3:1 אֱלֹהִים כִּיאָֿמַר אַף indeed, that God has said . . .. i.e. has God really said . . .. (compare הַאַף above).
3 with reference to a preceding sentence (which is often introduced by הֵן or הִנֵּה), yea, that . . .! i.e. how much more (or less) ! Proverbs 11:31 lo, the righteous is recompensed in the earth וְחוֺטֵא רָשָׁע כִּי ַאֹף 'tis indeed that (= how much more) the wicked and the sinner! 15:11; 17:7; 19:7, 10; Job 9:14; 15:16; 25:6; 1 Samuel 14:30; 1 Kings 8:27 (= 2 Chronicles 6:18) lo, the heavens . . . cannot contain thee הַזֶּה הַבַּיִת כִּי אַ֕ף 'tis indeed that this house (cannot do so), i.e. how much less this house! 32:15. So כִּי וְאַף Deuteronomy 31:27; 1 Samuel 21:6 (perhaps; but see RSSemitic i. 436 DrSm 293) 2 Samuel 16:11. (In Job 35:14 (Hi De) Nehemiah 9:18 כִּי אַף is simply = yea, when . . .)
אפד (existence & meaning dubious Thes MV and others identify with אָפַד gird on, but this denominative see below; LagBN 178; GN 1890, p. 15 proposes , come as ambassador, as √ of אֵפוֺר).