fettle fetticus • fettler · · · Info · Definitions · Characters · · fettle · · Text Latin · · Script 6 · · Length Definitions · · · (noun) a state of fitness and good health. Example: "In fine fettle." · · Noun Definition 1 (verb) remove mold marks or sand from (a casting). · · Verb Definition 1 Characters · · e latin small letter e U+0065 f latin small letter f U+0066 l latin small letter l U+006C t latin small letter t U+0074