Disclose

google

ref

late Middle English: from Old French desclos-, stem of desclore, based on Latin claudere ‘to close’.

wiktionary

ref

From Middle English disclosen, from Middle French desclos, from Old French desclore, itself from Vulgar Latin disclaudere, from Latin dis- + claudere(“to close, shut”) or as a variant of discludo, discludere (cf. disclude).

etymonline

ref

disclose (v.)

late 14c., disclosen, "to uncover and expose to view, open to the knowledge of others," from Old French desclos "open, exposed, plain, explicit," past participle of desclore (Modern French déclore) "open, break open, unlock, reveal," from des- "opposite of" (see dis-) + clore "to close" (see close (v.)). Related: Disclosed; disclosing.