The state or relationship of being a cosurety; the position of jointly guaranteeing an obligation.
From 'cosurety' with the suffix '-ship' from Old English meaning 'state or condition'. This created a noun describing the legal relationship or status of shared guarantorship.
The suffix '-ship' in words like 'friendship' and 'cosuretyship' shows how English loves turning relationships into named conditions—it's the linguistic equivalent of saying 'the state of being in this bond together'.
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