Etymology

repair (v.1)

"to mend, put back in order," mid-14c., from Old French reparer "repair, mend" (12c.), from Latin reparare "restore, put back in order," from re- "again" (see re-) + parare "make ready, prepare" (from PIE root *pere- (1) "to produce, procure"). Related: Repaired; repairing.

From Dictionary.com:

verb (used with object)

1. to restore to a good or sound condition after decay or damage; mend: to repair a motor.

2. to restore or renew by any process of making good, strengthening, etc.: to repair one's health by resting.

1300-50; Middle English repairen < Middle French reparer < Latin reparāre, equivalent to re- re- + parāre to prepare; see pare

re - prefix: occurring originally in loanwords from Latin, used with the meaning “again” or “again and again” to indicate repetition

From Wiktionary.org:

Coined between 1300 and 1350 from Middle English repairen, from Middle French reparer, from Latin reparō (“renew, repair”).

Noun

repair (plural repairs)

The act of repairing something.

I took the car to the workshop for repair.

The result of repairing something.

If you look closely you can see the repair in the paintwork.

The condition of something, in respect of need for repair.

The car was overall in poor repair before the accident. But after the workshop had it for three weeks it was returned in excellent repair. But the other vehicle was beyond repair.

Verb

repair (third-person singular simple present repairs, present participle repairing, simple past and past participle repaired)

To restore to good working order, fix, or improve damaged condition; to mend; to remedy.

to repair a house, a road, a shoe, or a ship
to repair a shattered fortune

To make amends for, as for an injury, by an equivalent; to indemnify for.

to repair a loss or damage