התעוף [הֲתָ֤עִיף] עֵינֶ֥יךָ בּ֗וֹ וְֽאֵ֫ינֶ֥נּוּ כִּ֤י עָשֹׂ֣ה יַעֲשֶׂה־לּ֣וֹ כְנָפַ֑יִם כְּ֝נֶ֗שֶׁר ועיף [יָע֥וּף] הַשָּׁמָֽיִם׃ (פ)
Wilt thou set thine eyes upon it? it is gone; For riches certainly make themselves wings, Like an eagle that flieth toward heaven.
Rashi on Proverbs
Should you blink your eyes at it The moment you blink your eyes to close them, that study will no longer be found with you.
Rashi on Proverbs
התעיף, like “and you shall fold” (Ex. 26:9), which Onkelos renders: ותעיף.