since Hector was a pup

Prepositional phrase

Canada US colloquial

(Canada, US, colloquial) Since a very long time ago.

Japanese Meaning

非常に長い昔から / ずっと昔から / 昔からずっと

Our family has gathered here every summer since Hector was a pup.

うちの家族は、ずっと前から毎年夏にここに集まってきました。

Sense（1）

(Canada, US, colloquial) Since a very long time ago.