Etymology
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carefulness (n.)
Old English carfulnys "anxiety, solicitude;" see careful + -ness. Meaning "heedfulness, caution" is in late Old English.
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meticulousness (n.)

"over-carefulness, scrupulousness," 1862, from meticulous + -ness. The earlier noun, in the old sense of "fearfulness, timidity," was meticulosity (1650s).

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jealousy (n.)
c. 1200 in reference to sexual possessiveness and suspicion, from Old French jalousie "enthusiasm, love, longing; jealousy" (12c.), from jalos "keen, zealous; avaricious; jealous" (see jealous). Also sometimes in Middle English in a sense "solicitude, carefulness, regard," the connecting notion being "watchfulness." Meaning "zeal, fervor, devotion" is from late 14c.
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diligence (n.)
Origin and meaning of diligence

mid-14c., "constant and earnest effort to accomplish what is undertaken," from Old French diligence "attention, care; haste, speed" and directly from Latin diligentia "attentiveness, carefulness," from diligentem (nominative diligens) "attentive, assiduous, careful," present-participle adjective from diligere "single out, value highly, esteem, prize, love; aspire to, be content with, appreciate," originally "to pick out, select," from dis- "apart" (see dis-) + legere "choose, gather," from PIE root *leg- (1) "to collect, gather," with derivatives meaning "to speak (to 'pick out words')."

Sense evolved through time from "love" through "attentiveness" to "carefulness" to "steady effort." Legal sense "attention and care due from a person in a given situation" is from 1620s. From the secondary French sense comes the old useage of diligence for "public stage coach" (1742; dilly for short), from a French shortening of carrosse de diligence.

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