1) Apprehensive word 2) Avoiding the risk that 3) Bad-mannered child 4) Before we forget 5) Cautionary conjunction 6) Exclusively Anglo word 7) Exclusively Saxon word 8) Fearing that 9) For fear 10) For fear of 11) For fear that 12) Heaven forbid that 13) In case 14) In case that 15) In order to avoid 1) Else 2) Incase 
• (a.) That (without the negative particle); -- after certain expressions denoting fear or apprehension. • (v. i.) To listen. • (a.) For fear that; that . . . not; in order that . . . not. • (n.) Lust; desire; pleasure. • (a.) Last; least.
Lest (lĕst) intransitive verb To listen. [ Obsolete] Chaucer. Spenser. Lest adjective Last; least. [ Obsolete] Chaucer. Lest conj. [ Middle English leste , from Anglo-Saxon ðȳ lǣs ðē the less that, where ðȳ is the instrumental case of the definite article, and ðē is an indeclinable relative particle, that , who , which . See Th...Lest noun [ See List to choose.] Lust; desire; pleasure. [ Obsolete] Chaucer. 
Large Earth-based Solar Telescope
[adv] - that (after verbs explicitly expressing fear etc.) 2. [adv] - for fear that