infrakingdom

Etymology tree
Latin īnfrābor.
English infra-
Proto-Indo-European *ǵenh₁-
Proto-Indo-European *-yós
Proto-Germanic *kunją
Proto-Indo-European *-n̥kʷo-der.?
Proto-Indo-European *-nós
Proto-Indo-European *-iHnos
Proto-Germanic *-īnaz
Proto-Indo-European *-kos
Proto-Germanic *-gaz
?
Proto-Germanic *-ingaz
Proto-Germanic *kuningaz
Proto-Indo-European *dʰeh₁-
Proto-Indo-European *-mos
Proto-Indo-European *dʰóh₁mos
Proto-Germanic *dōmaz
Proto-Germanic *-dōmaz
Proto-Germanic *kuningadōmaz
Proto-West Germanic *kuningadōm
Old English cyningdōm
Middle English kingdom
English kingdom
English infrakingdom
From infra- + kingdom.