deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
gam गम् reduplicates to **jagam- जगम् before /liT.
When the /liT starts with a vowel and is /kit, rule gamahanaj... makes **jagm- जग्म्, as in
**jagam- जगम् + /liT /jhi
→ **jagam- जगम् + /us
→ **jagm- जग्म् + /us
→ **jagmus जग्मुस् "they3 went"
and in
**jagam- जगम् + /liT /tas
→ **jagam- जगम् + /atus
→ **jagm- जग्म् + /atus
→ **jagmatus जग्मतुस् "they2 went"
And actually all /kit /liT start with a vowel, because the consonant /liT get /iT —
**jagam- जगम् + /ma
→ jagm जग्म् + /ma by gamahanaj...
→ jagm जग्म् + ima इम by RtobhAradv... (maybe — see iTofliT)
→ !**jagmima जग्मिम "we went"
Why do the consonant /kit /liT get /iT? Isn't gam गम् an /aniT root?
It is, but rule kRsRbhRvRst... says that nearly all roots become /seT before /liT.