Declercq rhymes with:
declerck, declerk, declerque, deklerk, declerck, declerk, declerque, deklerk, leclerc, clerc, clercq, clerk, declerck, declerk, declerque, deklerk, klerk, leclerc
Declercq sounds like:
declares, declerck, declerck's, declercq's, declerk, declerk's, declerque, declerque's, deklerk, deklerk's, desillers, deslauriers, discolors