מָתַי

Derivation

from an unused root meaning to extend;

Meaning

properly, extent (of time); but used only adverbially (especially with other particle prefixes), when (either relative or interrogative)

In the King James Version

long, when.

Translated as

when (2), long (1)

Where it appears

Found in 3 verses

Genesis

30:30

Exodus

8:9, 10:3