Full of or characterized by devoutness; deeply religious, sincere, and dedicated in belief or practice.
From 'devout' plus '-ful' suffix (meaning full of or characterized by). 'Devout' comes from Old French 'devot,' ultimately from Latin 'devotus' (dedicated, devoted).
This word is almost entirely archaic because 'devout' already functions perfectly as an adjective—adding '-ful' to it was redundant, and English evolved to drop the extra '-ful' form, showing how language naturally eliminates unnecessary synonyms.
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