העניק תעניק. לְשׁוֹן עֲדִי בַּגֹּבַהּ וּבְמַרְאִית הָעַיִן, דָּבָר שֶׁיְּהֵא נִכָּר שֶׁהֱטִיבוֹתָ לוֹ; וְיֵשׁ מְפָרְשִׁים לְשׁוֹן הַטְעָנָה עַל צַוָּארוֹ: הענק תעניק THOU SHALT FURNISH HIM LIBERALLY — The noun from the root ענק denotes an ornament worn high up on the body which thus easily comes within sight of the eye (i.e. is conspicuous), (cf. ענק, a giant, someone who towers on high) — i.e. you shall furnish him with something that will make it patent that you have been kind to him. There are some who explain the word הענק to mean loading on his (the servant’s) neck.
מצאנך ומגרנך ומיקבך. יָכוֹל אֵין לִי אֶלָּא אֵלּוּ בִּלְבַד, תַּ"לֹ אשר ברכך – מִכָּל מַה שֶּׁבֵּרַכְךָ בּוֹרַאֲךָ. וְלָמָּה נֶאֶמְרוּ אֵלּוּ? מָה אֵלּוּ מְיֻחָדִים שֶׁהֵם בִּכְלַל בְּרָכָה אַף כָּל שֶׁהוּא בִּכְלַל בְּרָכָה, יָצְאוּ פְּרָדוֹת; וְלָמְדוּ רַבּוֹתֵינוּ בְמַסֶּכֶת קִדּוּשִׁין (דף י"ז) בִּגְזֵרָה שָׁוָה כַּמָּה נוֹתֵן לוֹ מִכָּל מִין וָמִין: מצאנך מגרנך ומיקבך [THOU SHALT FURNISH HIM LIBERALLY] OUT OF THY FLOCK, AND OUT OF THY FLOOR, AND OUT OF THY WINE PRESS — One might think I have this duty in respect to these things only! Scripture, however, states “that wherewith the Lord thy God hath blessed thee [shalt thou give him]” implying, of all with which thy Creator hath blessed thee. Why, then, are these alone specifically mentioned? To teach you the following: How is it with these things? They have the characteristic that they come under the term of “blessing”, (i.e. they possess the power of propagating) so, too, you are obliged to furnish him only with such things that come under the term “blessing”, thus excluding mules, (because they are sterile) (Sifrei Devarim 119:3; Kiddushin 17a). — Our Rabbis have derived in Treatise Kiddushin 17a by reasoning from the analogous expressions found in certain texts (גז"ש) what quantities one must give him of all the different kinds here mentioned.