One of the mysteries of the English language finally explained.
1with object To support with a subvention; to give a grant, gift, or allowance to; (now especially) to fund (an enterprise, institution, etc.) with a subvention; to provide (money) as a subvention.
2no object To come from or as though from beneath; (hence) to arrive, occur, ensue. Compare "intervene", "supervene". Now rare.
Early 16th century (in an earlier sense). From (i) Anglo-Norman and Middle French subvenir to come to the aid of a person or thing, to come to the aid of, to help, support (a person).
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