-acsuffix

Primary stress is retained by the usual stressed syllable of the preceding element and vowels may be reduced accordingly; see e.g. myocardiac adj.

Forms: 1500s–1600s -acke, 1500s–1600s -acque, 1500s–1600s -ake, 1500s–1700s -ak, 1500s– -ac, 1600s -ach, 1600s -aque, 1600s–1700s -ack.

Origin: Of multiple origins. Partly a borrowing from French. Partly a borrowing from Latin. Etymons: French -aque; Latin -acus.

Etymology: < French -aque and its etymon classical Latin -acus (in e.g. cardiacus cardiac adj., elegīacus elegiac adj., aphrodīsiacus aphrodisiac adj., in post-classical Latin also daemoniacus demoniac adj., maniacus maniac adj., iliacus iliac adj.¹) < ancient Greek -ακός (in e.g. ἡλιακός heliac adj., in Hellenistic Greek also καρδιακός cardiac adj., δαιμονιακός demoniac adj.), the form of the adjectival suffix -κός in combination with nouns in -ια , -ιος , -ιον . See also -acal suffix.Found in adjectives and nouns borrowed from French or Latin from the 15th and 16th centuries onwards, as e.g. cardiac n., maniac adj., Armeniac adj., symposiac n., genethliac n. Formations within English are apparently found from the late 16th cent. (see Phaleuciac n.) or 17th cent. (e.g. enthusiac adj., roseac adj., pulmoniac adj.).

Forming adjectives and nouns chiefly indicating relationship to or possession of a physical or mental condition.

This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2020).

单词	-ac
释义	-acsuffix Primary stress is retained by the usual stressed syllable of the preceding element and vowels may be reduced accordingly; see e.g. myocardiac adj. Forms: 1500s–1600s -acke, 1500s–1600s -acque, 1500s–1600s -ake, 1500s–1700s -ak, 1500s– -ac, 1600s -ach, 1600s -aque, 1600s–1700s -ack. Origin: Of multiple origins. Partly a borrowing from French. Partly a borrowing from Latin. Etymons: French -aque; Latin -acus. Etymology: < French -aque and its etymon classical Latin -acus (in e.g. cardiacus cardiac adj., elegīacus elegiac adj., aphrodīsiacus aphrodisiac adj., in post-classical Latin also daemoniacus demoniac adj., maniacus maniac adj., iliacus iliac adj.¹) < ancient Greek -ακός (in e.g. ἡλιακός heliac adj., in Hellenistic Greek also καρδιακός cardiac adj., δαιμονιακός demoniac adj.), the form of the adjectival suffix -κός in combination with nouns in -ια , -ιος , -ιον . See also -acal suffix.Found in adjectives and nouns borrowed from French or Latin from the 15th and 16th centuries onwards, as e.g. cardiac n., maniac adj., Armeniac adj., symposiac n., genethliac n. Formations within English are apparently found from the late 16th cent. (see Phaleuciac n.) or 17th cent. (e.g. enthusiac adj., roseac adj., pulmoniac adj.). Forming adjectives and nouns chiefly indicating relationship to or possession of a physical or mental condition. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2020). < suffix
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