73. FES'TUS, joyful, merry.
fest: -al, -ival, -ive, -ivity; feast (Old Fr. feste, a joyous meal); fête (modern Fr. equivalent of feast), a festival; festoon (Fr. n. feston, originally an ornament for a festival).
74. FID'ERE: fi'do, to trust; Fi'des, faith; Fide'lis, trusty.
fid: confide' (-ant, -ence, -ent, -ential); dif'fidence; dif'fident; per'fidy (per = through and hence away from good faith); perfid'ious.
fidel: fidel'ity; in'fidel; infidel'ity.
Fe'alty (Old Fr. n. féalté = Lat. fidel'itas), loy'alty; fidu'cial (Lat. n. fidu'cia, trust); fidu'ciary; affi'ance, to pledge faith, to betroth; affida'vit (Low Lat., signifying, literally, he made oath), a declaration on oath; defy' (Fr. v. défier, originally, to dissolve the bond of allegiance; hence, to disown, to challenge, to brave).
75. FI'GERE: fi'go, fix'um, to join, fix, pierce.
fix: affix'; cru'cifix (Lat. n. crux, cru'cis, a cross); cru'cify; fix'ture; post'fix; pre'fix; suf'fix (n., literally, something fixed below or on; hence, appended); transfix', to pierce through.
76. FIN'GERE: fin'go, fic'tum, to form, to feign; Figu'ra, a shape.
fict: fic'tion; ficti'tious.