Many of the plethora of meanings ascribed to this verb in DJBA belong rather to the simple sense "to be present", while the special meaning is in fact conveyed by the preposition or the nominal relations.
The pael meaning "to swear", "make a covenant" may be understood as separate denominatives from qyām "covenant".
Students of Hebrew should note the difference between that language and Aramaic here: In Biblical Hebrew קום is "to arise, stand up" while "to stand, stop" is עמד. In Aramaic קום is used for both of these senses.