Middle English Dictionary Entry

-ǒus suf.
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Entry Info

Definitions (Senses and Subsenses)

1.
A derivational suffix in adjectives; esp. in words of OF or L origin: anoious, barbarus, chevalrous, daungerous, disdeinous, eurous, fortunous, glandelous, grevous, hidous, joious, lapidose, perilous, ravenous, trecherous, etc.; also, in ME formations from OF or L stems: avisose, cruelous, debatous, deceivous, disclaundrous, jupartous, languishous, lecherous, troublous, etc.; less frequently in ME formations from OE or ON stems: gleimous, shamousli, wonderous, etc.; very rarely replacing other suffixes and combining forms [see gorgeouse & vars. of right-wise adj., wrong-wisli adv., courteis adj.; the MED is unable to augment the examples of substitution given by OD].

Supplemental Materials (draft)

Note: See new entry dredefullous adj. which needs to be mentioned in this entry with its own explanation: the -ǒus derivational suffix in adjectives has been added to an adjective. (See drēdeful adj.).
Note: Add these endings to the form section: 1. -ǒuse. See, for example the Supplement entry for cō̆rdǒus adj. 2. -ǒux. See MED traitǒurǒus adj., sense (a), quot. (1470) Stonor 1.116. The form traitǒurǒus needs to be mentioned in the -ǒus entry, noting the French influence of the -ǒux suffix form. 3. -ǒuce. See the Supplement entry for grẹ̄vǒus adj., quot. a1500 Craft Dying 410.--notes per MLL