em- / Indo-European roots
Examples of words with the root em-: ademption, assume, consume, example, peremptory, preemption, premium, presume, prompt, redeem, resume, subsume, sumptuary, vintage.
To take, distribute.
1. ademption, example, exemplary, exemplify, exemplum, exempt, impromptu, peremptory, preemption, premium, prompt, pronto, ransom, redeem, redemption, sample, vintage from Latin emere, to obtain, buy.
2. sumptuary, sumptuous; assume, consume, presume, resume, subsume from Latin sūmere (< *sus(e)m-), to take, obtain, buy (sus-, variant of sub-, up from under; see upo)
[Pokorny em- 310.]