From nuwph; a brandishing (in threat); by implication, tumult; specifically, the official undulation of sacrificial offerings -- offering, shaking, wave (offering).
see HEBREW nuwph
2. a. waving, wave-offering, technical term in P (H), originally of priest's share of sacrifice (compare נוף Hiph`il 4), בְּנֵ ׳לְכָּלתְּֿנוּפֹת ׳יִשׂ נְתַתִּים לְךָ Numbers 18:11; often as 2nd accusative after הֵנִיף Exodus 29:25 5t.; even of Levites Numbers 8:11, 13, 15, 20 (on all see נוף Hiph`il 4); הַתְּ ׳חֲזֵה Exodus 29:27 the wave-breast, so Leviticus 7:34; 10:14-15, Numbers 6:20 (all + הַתְּרוּמָה שׁוֺק) 18:18 (+ הַיָּמִין שׁוֺק); הַתְּ ׳עֹמֶר Leviticus 23:15; הַתְּ ׳לָחֶם 23:17; ׳ת alone 23:20 (all H); less accurately Exodus 29:24; Leviticus 8:27; 14:12, 21, 24 (see נוףl.c.).
II. נוף (√ of following; compare Arabic , I, IV. overtop (Frey), camel-hump (ib.); high, lofty (of mountain and building, Lane3039).