sum-mŏlestus (subm-), a, um, adj.,
somewhat troublesome or vexatious (very rare): illud est mihi submolestum, quod, etc., Cic. Att. 16, 4, 4.—Adv.: summŏle-stē , with some vexation : aliquid ferre, Cic. Att. 5, 21, 1.
sub-molestus (summ-) adj., somewhat troublesome, rather vexatious: illud mihi. ...
An Elementary Latin Dictionary