meticulous

the word 'meticulous' entered english in the mid-16th century via latin 'meticulosus', which itself stems from 'metus', meaning 'fear'. its original sense was 'fearful, timid', overly cautious about potential dangers. over time, this sense of excessive apprehension shifted semantically from fear of making mistakes to an extreme care taken to avoid them. by the 19th century, the meaning had fully evolved to its current positive connotation of being scrupulously attentive to detail, illustrating a fascinating journey from anxiety to precision.

the word is a simplex unit in modern english. it is derived as a whole from the latin adjective 'meticulosus', meaning 'fearful, timid'.