imburse
To put into a purse; to save, to store up.
obsolete, transitive
Pit 3, the tomb of Simoniacs, is perforated throughout bottom and sides with round holes, 'purses' in which these money-sinners are imbursed from sight, head downward and within the earth, while their feet writhe without, licked by the fire which torments offenders directly against God.
To give money to, to pay; to stock or supply with money.
obsolete, transitive
If the Company would enlarge this commerce, it must be done by investments in India according to their annual advices to the Factors there, and the Company will also do well strictly to enjoin the Factors to prohibit lading any of the kinds sent for the Company's account, such commodities will imburse ready moneys with which silk can be procured far more reasonably than of the King, and without the fraud his Ministers use by their unconscionable wetting and false weighing.
To pay back money that is owed; to refund, to repay, to reimburse.
obsolete, transitive
[T]hey prayed me to be their Surety for payment of their Ranſom-Money; and herein every one was very forward with his Pretences; one alledged Nobleneſs of Birth; another, that he had great Friends and Alliances; a Third, that he was a Commander in the Army, and had much Pay due to him; a Fourth, that he had Caſh enough at Home, and was able to imburſe me.
Where it comes from
From Medieval Latin imbursāre, Late Latin imbursāre, from Latin im- (variant of in- (prefix meaning ‘in, inside’ usually affixed to verbs)) + bursa (“animal skin, oxhide; purse (usually made of leather or skin); supply of money, funds”) (from Ancient Greek βῠ́ρσᾰ (bŭ́rsă, “animal skin; skin stripped off a hide”)); analysable as im- + burse. The word is cognate with Old French enborser (modern French embourser), Italian imborsare, Spanish embolsar (“to bag”).
Adapted from the Wiktionary entry imburse (CC BY-SA 4.0).