"commendation, sanction," 1680s, from approve + -al (2). According to OED, "Rare bef. 1800; now generally used instead of" approvance, which is attested by 1590s, from French aprovance.

1827, "action of arousing, state of being awakened," from arouse + -al (2). Sexual association is from c. 1900.

"open declaration, frank acknowledgment," 1716, from avow + -al (2).

"act of betraying," 1798, from betray + -al (2). Earlier in the same sense were betrayment (1540s), betraying (late 14c.).

"act of burying," late 13c.; earlier "tomb" (c. 1200), false singular from Old English byrgels "tomb," from byrgan "to bury" + suffix -els; a compound also found in Old Saxon burgisli, suggesting a Proto-Germanic *burgisli-, from PIE root *bhergh- (1) "to hide, protect." The Germanic suffix *-isli- (also in riddle (n.1), Old English hydels "hiding place," fætels "bag") became obsolete and was felt as a plural of the Latin-derived suffix -al (2) forming nouns of action from verbs (survival, approval, removal, etc.). In the "act of burying a dead person" sense it is now regarded as bury + -al. Burial-ground is from 1803.

"noisy drinking bout," 1735, from carouse (v.) + -al (2). The earlier noun was simply carouse "a drinking bout" (1550s).

1780, "pertaining to hospital patients or hospital care," from clinic + -al (2). Meaning "coldly dispassionate" (like a medical report) is recorded from 1928. The earlier adjective was clinic "of or pertaining to the sick-bed" (1620s). Related: Clinically.

1620s, "committing, commission" (of an offense, etc.), from commit + -al (2). Meaning "act of entrusting or giving in charge" is by 1830; that of "action of committing oneself" is from 1835. As an adjective, attested from 1884, apparently a back-formation from non-committal (q.v.).

"act of bestowing," 1880, from confer + -al (2).

"deferment," 1840, from defer (v.1) + -al (2).