As in गमन - gamana (’moving toward’)

伽字門，入諸法去者不可得故

The syllable GA is a gateway that enters because the departure of all dharmas cannot be attained.

- Kumarajiva

入伽字門，悟一切法行取性不可得故

Entering the gate of the syllable GA, because one realizes that the grasped nature (grahaṇa) of the movement (gamana) of all dharmas cannot be attained.

- Xuanzang

誐(上)字門一切法行不可得故

The syllable GA is a gateway because the movement (gamana) of all dharmas cannot be attained

- Amoghavajra

GA because of that of motion (gamana).

- Conze

The syllable GA is an opening because we cannot apprehend the sky (gagana गगन) of all mental phenomenon.

- Jayarava