-siene

• -sēne, -sīne, -sȳne

From Proto-West Germanic *-siunī. Cognate with Old High German -siuni. Equivalent to sīen +‎ -e, literally “with a certain sight.”

• IPA^(key): /ˈsi͜yː.ne/

-sīene

1. relating to sight: -seen, -visible, -sighted

   ‎ēage (“eye”) + ‎-siene → ‎ēagsīene (“apparent”)

   ‎sċearp (“sharp”) + ‎-siene → ‎sċearpsīene (“sharpsighted”)

   ‎seld- (“rare”) + ‎-siene → ‎seldsīene (“strange”)

   ‎þurh (“through”) + ‎-siene → ‎þurhsīene (“seethrough”)