Je was op zoek naar: costestes e spiritu silensium (Latijn - Engels)

costestes e spiritu silentio
costestes is not a classical latin word but might be medieval or church latin. cotestes could be a word (not classical) meaning something like co-witnesses. e spiritu (if they are the proper words) could mean out of/derived from the spirit (holy?). silentio is the dative or ablative singular of the neuter noun silentium meaning silence and could mean to/for/by/with/from/in/at/on (the) silence. but unless an accurate copy of the words can be obtained, i fear there is little chance of solving the riddle.

testator silens costestes e spiritu
please, specify two different languages

testator silens costestes e spiritu silencium
the silent witness, the silence of the spirit

contestes e spiritu
silencium

testator silen contestes e spiritu silencium
testator of silence contested from the spirit of silence

testator silens, cotestes e spiritu, silentium
silent witness, co-witnesses in spirit, silence