Old-Duffer, the rank you are trying to remember is “Ardian”, but those were officer ranks.
The 1918-1919 non-commissioned ranks were: Warrant Officer Class I, Warrant Officer Class II, Flight Sergeant, Sergeant, Corporal and Air Mechanic, Private, Clerk and Boy as shown below.
The ranks below Corporal were amalgamated to SAC and LAC in 1919.
Mechanic, Clerk and Private are, of course, gender neutral - albeit having nothing to do with most modern roles.
WRAF ranks of the same period can be found in the link below.
https://www.greatwarforum.org/topic/...omment=2770614