以 compared to

You could think of it as a boot (on the left) kicking a high-heeled SHOE (right) and sending the buckle of the hi-heel flying (top):

thus:
I compared my Dr. Martens to your $2,000 designer heel, and I won.

other than xxx ★★★★☆
以 (compared to) + 外 (outside) = 以外 (other than xxx)

other than xxx / except for xxx.

more than / that's all ★★★★☆ JERK
以 (compared to) + 上 (above) = 以上 (more than / that's all)

２ meanings. usually said when you finish ordering something (food, copies, condoms) ； 'That'll be all.' It also means, "on top of all that" or "more than" (used like xxx以上、or sometimes also 以上　のｘｘｘ）

in the past ★★★☆☆
以 (compared to) + 前 (before) = 以前 (in the past)

previously, earlier, in the past