1
Stage 1 of 3
claudere
Latin · ancient
"to close, to shut"
to close, to shut, combined with ob- (against)
2
Stage 2 of 3
occludere
Latin · ancient
"to shut up, to close off"
to shut up, to close off, from ob- and claudere
3
Stage 3 of 3
occlude
English · 1600s
"to block or close off a passage"
settled as the English word for blocking or closing off a passage
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