cross-eyed, cross I'd

Cross-eyed or cross-eyed describes someone with strabismus; someone whose eyes turn out or in, instead of looking straight ahead--
He seems cross-eyed; we're going to take him to the eye doctor.
Gladly, the cross-eyed bear went over the mountain.

Cross I'd or cross I'd ( rhymes with cross-eyed ) means  a structure or symbol made of an upright piece or line, with another piece or line set over or through it, horizontally ( cross ) that the speaker would ( I'd ) [ perform some action  on or with ]--
That's the cross I'd buy for her birthday, but I don't know if she'd like it.
"Gladly the cross I'd bear..."

Now that you know that, you can say--
"We nearly became cross-eyed, looking for the cross I'd lost."