Old-line and Useable

Old-line adjective - Tending to favor established ideas, conditions, or institutions.

Useable and old-line are semantically related. In some cases you can use "Useable" instead an adjective phrase "Old-line".

Useable adjective - Capable of being put to use.

Old-line and useable are semantically related. Sometimes you can use "Old-line" instead an adjective "Useable".