Sentence:  The face which emerged was not reassuring. […]. He was not a mongol but there was a deficiency of a sort there, and it was not made more pretty by a latter-day hair cut which <WSD>involved</WSD> eccentrically long elf-locks and oiled black curls. 
Meaning of the word marked with <WSD> tags:  To complicate or make intricate, as in grammatical structure.