"act of renewing or forming anew," 1680s, from renew (v.) + -al (2). Specific meaning "urban redevelopment" is attested by 1965, American English. An earlier noun was simply renew (early 15c., reneue).

1746, in Scottish law, "renewal of a lease," noun of action from relocate (v.). The meaning "act of relocating" is from 1837.

"restoration, renewal," c. 1600, from Latin instaurationem (nominative instauratio) "a renewal," noun of action from past participle stem of instaurare "to set up, establish; renew, restore," from in- "in" (from PIE root *en "in") + -staurare (ending also found in restaurant), from PIE *stauro-, from root *sta- "to stand, make or be firm."

"replacement of an old obligation by a new one," 1530s, from Latin novationem (nominative novatio) "a making new, renewal, renovation," noun of action from past-participle stem of novare "make new, renew, make fresh," from novus "new" (see new).

"renewal of the appearance, powers, or feelings of youth," 1630s, from Latin rejuvenescere "become young again," from re- "again" (see re-) + juvenescere "become young," from juvenis "young" (see young (adj.); also see -ence).

1610s, "act of bringing together the parts of a whole," from French intégration and directly from Late Latin integrationem (nominative integratio) "renewal, restoration," noun of action from past participle stem of Latin integrare "make whole," also "renew, begin again" (see integrate). Anti-discrimination sense (opposed to segregation) is recorded from 1934.

"war waged against a government by some portion of its subjects" (originally especially against God or Church authority), mid-14c., rebellioun, from Old French rebellion (14c.) and directly from Latin rebellionem (nominative rebellio) "rebellion, revolt; renewal of war," from rebellis "insurgent, rebellious" (see rebel (adj.)).

mid-15c., innovacion, "restoration, renewal," from Late Latin innovationem (nominative innovatio), noun of action from past-participle stem of innovare "to change; to renew," from in- "into" (from PIE root *en "in") + novus "new" (see new). Meaning "a novel change, experimental variation, new thing introduced in an established arrangement" is from 1540s.

c. 1400, renovacyoun, in theology, "spiritual rebirth wrought by the Holy Spirit," also in a general sense, "rebuilding, reconstruction; a making new after decay, destruction, or impairment," from Old French renovacion (13c.) and directly from Latin renovationem (nominative renovatio) "a renewing, renewal; a rest," noun of action from past-participle stem of renovare "renew, restore," from re- "again" (see re-) + novare "make new," from novus "new" (see new).

mid-14c., reconciliacioun, "renewal of friendship after disagreement or enmity, action of reaching accord with an adversary or one estranged" (originally especially of God and sinners), from Old French reconciliacion (14c.) and directly from Latin reconciliationem (nominative reconciliatio) "a re-establishing, a reconciling," noun of action from past-participle stem of reconciliare (see reconcile).

From 1729 as "act of harmonizing or making consistent." Other early noun forms included reconcilement (mid-15c.), reconciling (late 14c.).