6350abee_er_National_Language_Esperanto__son_in_law
[bo-] pra- [in-law] long ago [filo] historio [son] history [bofilo] prahistorio [son-in-law] 
prehistory
t o d i s t r i b u t e
e x - h u s b a n d
t o c a t c h a g l i m p s e o f
d i r t y b o o k
p a r e n t s
c o l d
p r e h i s t o r y
t o r e a d a g a i n
A Key to the Inter-National Language Esperanto
son-in-law