everyday

Everyday, a.

Used or fit for every day; common; usual; as, an everyday suit or clothes. The mechanical drudgery of his everyday employment. Sir. J. Herchel.

Shades of meaning

Fernald has no entry of its own for everyday; he lists it under general, usual.

Where he writes about it:

Ordinary (L. ordo, order) signifies according to an established order, hence of everyday occurrence. — from usual