Charles Ellicott Commentary Psalms 80:5

"Thou hast fed them with the bread of tears, And given them tears to drink in large measure." — Psalms 80:5 (ASV)

Bread of tears. —See Psalm 42:3.

In great measure. —Heb., shalîsh, i.e., a third part. (Compare to Isaiah 40:12, Margin.) Probably meaning a third part of an ephah. (Isaiah 5:10, Septuagint) But here evidently used in a general way, as we say “a peck of troubles.”