strait-laced

[streyt-leyst] /ˈstreɪtˈleɪst/
adjective
1.
excessively strict in conduct or morality; puritanical; prudish:
strait-laced censors.
2.
tightly laced, as a bodice.
3.
wearing tightly laced garments.
Also, straight-laced.
Origin
1400-50; late Middle English
Related forms
strait-lacedly
[streyt-ley-sid-lee, -leyst-lee] /ˈstreɪtˈleɪ sɪd li, -ˈleɪst li/ (Show IPA), adverb
strait-lacedness, noun

strait-lace

[streyt-leys] /ˈstreɪtˌleɪs/
verb (used with object), strait-laced, strait-lacing.
1.
to bind, confine, or restrain with or as if with laces.
Origin
1630-40; back formation from strait-laced
British Dictionary definitions for strait-laced

strait-laced

adjective
1.
prudish or puritanical
Word Origin and History for strait-laced
adj.

1540s, of stays or bodices; figurative sense of "over-precise, prudish" is from 1550s; see strait (n.) + lace (v.).