As its former name implies, cru is best known for its campus outreach: Bible study groups and the like.
CCC—sorry, cru—is at once better known and lesser known than these groups.
from French cru "vineyard," literally "growth" (16c.), from Old French crois (12c.; Modern French croît), from croiss-, stem of croistre "growth, augment, increase," ultimately from Latin crescere "come forth, spring up, grow, thrive" (see crescent).